frontend/app/(main)/screens/[screenId]/page.tsx

@@ -23,6 +23,7 @@ import { TableSearchWidgetHeightProvider, useTableSearchWidgetHeight } from "@/c
 import { ScreenContextProvider } from "@/contexts/ScreenContext"; // 컴포넌트 간 통신
 import { SplitPanelProvider } from "@/lib/registry/components/split-panel-layout/SplitPanelContext"; // 분할 패널 리사이즈
 import { ActiveTabProvider } from "@/contexts/ActiveTabContext"; // 활성 탭 관리
+import { evaluateConditional } from "@/lib/utils/conditionalEvaluator"; // 조건부 표시 평가
 
 function ScreenViewPage() {
   const params = useParams();
@@ -218,6 +219,67 @@ function ScreenViewPage() {
     initAutoFill();
   }, [layout, user]);
 
+  // 🆕 조건부 비활성화/숨김 시 해당 필드 값 초기화
+  // 조건 필드들의 값을 추적하여 변경 시에만 실행
+  const conditionalFieldValues = useMemo(() => {
+    if (!layout?.components) return "";
+    
+    // 조건부 설정에 사용되는 필드들의 현재 값을 JSON 문자열로 만들어 비교
+    const conditionFields = new Set<string>();
+    layout.components.forEach((component) => {
+      const conditional = (component as any).conditional;
+      if (conditional?.enabled && conditional.field) {
+        conditionFields.add(conditional.field);
+      }
+    });
+    
+    const values: Record<string, any> = {};
+    conditionFields.forEach((field) => {
+      values[field] = (formData as Record<string, any>)[field];
+    });
+    
+    return JSON.stringify(values);
+  }, [layout?.components, formData]);
+
+  useEffect(() => {
+    if (!layout?.components) return;
+
+    const fieldsToReset: string[] = [];
+
+    layout.components.forEach((component) => {
+      const conditional = (component as any).conditional;
+      if (!conditional?.enabled) return;
+
+      const conditionalResult = evaluateConditional(
+        conditional,
+        formData as Record<string, any>,
+        layout.components,
+      );
+
+      // 숨김 또는 비활성화 상태인 경우
+      if (!conditionalResult.visible || conditionalResult.disabled) {
+        const fieldName = (component as any).columnName || component.id;
+        const currentValue = (formData as Record<string, any>)[fieldName];
+        
+        // 값이 있으면 초기화 대상에 추가
+        if (currentValue !== undefined && currentValue !== "" && currentValue !== null) {
+          fieldsToReset.push(fieldName);
+        }
+      }
+    });
+
+    // 초기화할 필드가 있으면 한 번에 처리
+    if (fieldsToReset.length > 0) {
+      setFormData((prev) => {
+        const updated = { ...prev };
+        fieldsToReset.forEach((fieldName) => {
+          updated[fieldName] = "";
+        });
+        return updated;
+      });
+    }
+  }, [conditionalFieldValues, layout?.components]);
+
   // 캔버스 비율 조정 (사용자 화면에 맞게 자동 스케일) - 초기 로딩 시에만 계산
   // 브라우저 배율 조정 시 메뉴와 화면이 함께 축소/확대되도록 resize 이벤트는 감지하지 않음
   useEffect(() => {
@@ -469,9 +531,30 @@ function ScreenViewPage() {
                   <>
                     {/* 일반 컴포넌트들 */}
                     {adjustedComponents.map((component) => {
+                      // 조건부 표시 설정이 있는 경우에만 평가
+                      const conditional = (component as any).conditional;
+                      let conditionalDisabled = false;
+                      
+                      if (conditional?.enabled) {
+                        const conditionalResult = evaluateConditional(
+                          conditional,
+                          formData as Record<string, any>,
+                          layout?.components || [],
+                        );
+
+                        // 조건에 따라 숨김 처리
+                        if (!conditionalResult.visible) {
+                          return null;
+                        }
+                        
+                        // 조건에 따라 비활성화 처리
+                        conditionalDisabled = conditionalResult.disabled;
+                      }
+
                       // 화면 관리 해상도를 사용하므로 위치 조정 불필요
                       return (
                         <RealtimePreview
+                          conditionalDisabled={conditionalDisabled}
                           key={component.id}
                           component={component}
                           isSelected={false}

frontend/components/screen/InteractiveScreenViewerDynamic.tsx

@@ -19,84 +19,7 @@ import { FlowVisibilityConfig } from "@/types/control-management";
 import { findAllButtonGroups } from "@/lib/utils/flowButtonGroupUtils";
 import { useScreenPreview } from "@/contexts/ScreenPreviewContext";
 import { useSplitPanelContext } from "@/contexts/SplitPanelContext";
-
+import { evaluateConditional } from "@/lib/utils/conditionalEvaluator";
-// 조건부 표시 평가 함수
-function evaluateConditional(
-  conditional: ComponentData["conditional"],
-  formData: Record<string, any>,
-  allComponents: ComponentData[],
-): { visible: boolean; disabled: boolean } {
-  if (!conditional || !conditional.enabled) {
-    return { visible: true, disabled: false };
-  }
-
-  const { field, operator, value, action } = conditional;
-
-  // 참조 필드의 현재 값 가져오기
-  // 필드 ID로 컴포넌트를 찾아 columnName 또는 id로 formData에서 값 조회
-  const refComponent = allComponents.find((c) => c.id === field);
-  const fieldName = (refComponent as any)?.columnName || field;
-  const fieldValue = formData[fieldName];
-
-  // 조건 평가
-  let conditionMet = false;
-  switch (operator) {
-    case "=":
-      conditionMet = fieldValue === value || String(fieldValue) === String(value);
-      break;
-    case "!=":
-      conditionMet = fieldValue !== value && String(fieldValue) !== String(value);
-      break;
-    case ">":
-      conditionMet = Number(fieldValue) > Number(value);
-      break;
-    case "<":
-      conditionMet = Number(fieldValue) < Number(value);
-      break;
-    case "in":
-      if (Array.isArray(value)) {
-        conditionMet = value.includes(fieldValue) || value.map(String).includes(String(fieldValue));
-      }
-      break;
-    case "notIn":
-      if (Array.isArray(value)) {
-        conditionMet = !value.includes(fieldValue) && !value.map(String).includes(String(fieldValue));
-      } else {
-        conditionMet = true;
-      }
-      break;
-    case "isEmpty":
-      conditionMet =
-        fieldValue === null ||
-        fieldValue === undefined ||
-        fieldValue === "" ||
-        (Array.isArray(fieldValue) && fieldValue.length === 0);
-      break;
-    case "isNotEmpty":
-      conditionMet =
-        fieldValue !== null &&
-        fieldValue !== undefined &&
-        fieldValue !== "" &&
-        !(Array.isArray(fieldValue) && fieldValue.length === 0);
-      break;
-    default:
-      conditionMet = true;
-  }
-
-  // 액션에 따른 결과 반환
-  switch (action) {
-    case "show":
-      return { visible: conditionMet, disabled: false };
-    case "hide":
-      return { visible: !conditionMet, disabled: false };
-    case "enable":
-      return { visible: true, disabled: !conditionMet };
-    case "disable":
-      return { visible: true, disabled: conditionMet };
-    default:
-      return { visible: true, disabled: false };
-  }
-}
 
 // 컴포넌트 렌더러들을 강제로 로드하여 레지스트리에 등록
 import "@/lib/registry/components/ButtonRenderer";

frontend/components/screen/RealtimePreviewDynamic.tsx

@@ -64,6 +64,9 @@ interface RealtimePreviewProps {
 
   // 🆕 조건부 컨테이너 높이 변화 콜백
   onHeightChange?: (componentId: string, newHeight: number) => void;
+  
+  // 🆕 조건부 비활성화 상태
+  conditionalDisabled?: boolean;
 }
 
 // 동적 위젯 타입 아이콘 (레지스트리에서 조회)
@@ -93,7 +96,7 @@ const getWidgetIcon = (widgetType: WebType | undefined): React.ReactNode => {
   return iconMap[widgetType] || <Type className="h-3 w-3" />;
 };
 
-export const RealtimePreviewDynamic: React.FC<RealtimePreviewProps> = ({
+const RealtimePreviewDynamicComponent: React.FC<RealtimePreviewProps> = ({
   component,
   isSelected = false,
   isDesignMode = true, // 기본값은 편집 모드
@@ -128,6 +131,7 @@ export const RealtimePreviewDynamic: React.FC<RealtimePreviewProps> = ({
   formData,
   onFormDataChange,
   onHeightChange, // 🆕 조건부 컨테이너 높이 변화 콜백
+  conditionalDisabled, // 🆕 조건부 비활성화 상태
 }) => {
   const [actualHeight, setActualHeight] = React.useState<number | null>(null);
   const contentRef = React.useRef<HTMLDivElement>(null);
@@ -509,6 +513,7 @@ export const RealtimePreviewDynamic: React.FC<RealtimePreviewProps> = ({
           sortOrder={sortOrder}
           columnOrder={columnOrder}
           onHeightChange={onHeightChange}
+          conditionalDisabled={conditionalDisabled}
         />
       </div>
 
@@ -532,6 +537,12 @@ export const RealtimePreviewDynamic: React.FC<RealtimePreviewProps> = ({
   );
 };
 
+// React.memo로 래핑하여 불필요한 리렌더링 방지
+export const RealtimePreviewDynamic = React.memo(RealtimePreviewDynamicComponent);
+
+// displayName 설정 (디버깅용)
+RealtimePreviewDynamic.displayName = "RealtimePreviewDynamic";
+
 // 기존 RealtimePreview와의 호환성을 위한 export
 export { RealtimePreviewDynamic as RealtimePreview };
 export default RealtimePreviewDynamic;

frontend/components/screen/panels/UnifiedPropertiesPanel.tsx

@@ -1548,18 +1548,67 @@ export const UnifiedPropertiesPanel: React.FC<UnifiedPropertiesPanelProps> = ({
                         action: "show",
                       }
                     }
-                    onChange={(newConfig: ConditionalConfig) => {
+                    onChange={(newConfig: ConditionalConfig | undefined) => {
                       handleUpdate("conditional", newConfig);
                     }}
                     availableFields={
                       allComponents
-                        ?.filter((c) => c.type === "widget" && c.id !== selectedComponent.id)
+                        ?.filter((c) => {
-                        .map((c) => ({
+                          // 자기 자신 제외
-                          id: (c as any).columnName || c.id,
+                          if (c.id === selectedComponent.id) return false;
-                          label: (c as any).label || c.id,
+                          // widget 타입 또는 component 타입 (Unified 컴포넌트 포함)
-                          type: (c as any).widgetType || "text",
+                          return c.type === "widget" || c.type === "component";
-                        })) || []
+                        })
+                        .map((c) => {
+                          const widgetType = (c as any).widgetType || (c as any).componentType || "text";
+                          const config = (c as any).componentConfig || (c as any).webTypeConfig || {};
+                          const detailSettings = (c as any).detailSettings || {};
+                          
+                          // 정적 옵션 추출 (select, dropdown, radio, entity 등)
+                          let options: Array<{ value: string; label: string }> | undefined;
+                          
+                          // Unified 컴포넌트의 경우
+                          if (config.options && Array.isArray(config.options)) {
+                            options = config.options;
+                          }
+                          // 레거시 컴포넌트의 경우
+                          else if ((c as any).options && Array.isArray((c as any).options)) {
+                            options = (c as any).options;
+                          }
+                          
+                          // 엔티티 정보 추출 (config > detailSettings > 직접 속성 순으로 우선순위)
+                          const entityTable = 
+                            config.entityTable || 
+                            detailSettings.referenceTable || 
+                            (c as any).entityTable ||
+                            (c as any).referenceTable;
+                          const entityValueColumn = 
+                            config.entityValueColumn || 
+                            detailSettings.referenceColumn ||
+                            (c as any).entityValueColumn ||
+                            (c as any).referenceColumn;
+                          const entityLabelColumn = 
+                            config.entityLabelColumn || 
+                            detailSettings.displayColumn ||
+                            (c as any).entityLabelColumn ||
+                            (c as any).displayColumn;
+                          
+                          // 공통코드 정보 추출
+                          const codeGroup = config.codeGroup || detailSettings.codeGroup || (c as any).codeGroup;
+                          
+                          return {
+                            id: (c as any).columnName || c.id,
+                            label: (c as any).label || config.label || c.id,
+                            type: widgetType,
+                            options,
+                            entityTable,
+                            entityValueColumn,
+                            entityLabelColumn,
+                            codeGroup,
+                          };
+                        }) || []
                     }
+                    currentComponentId={selectedComponent.id}
                   />
                 </div>
               </div>

frontend/components/unified/ConditionalConfigPanel.tsx

@@ -17,16 +17,24 @@ import { Switch } from "@/components/ui/switch";
 import { Button } from "@/components/ui/button";
 import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
 import { Separator } from "@/components/ui/separator";
-import { Zap, Plus, Trash2, HelpCircle } from "lucide-react";
+import { Popover, PopoverContent, PopoverTrigger } from "@/components/ui/popover";
+import { Command, CommandEmpty, CommandGroup, CommandInput, CommandItem, CommandList } from "@/components/ui/command";
+import { Zap, Plus, Trash2, HelpCircle, Check, ChevronsUpDown } from "lucide-react";
 import { ConditionalConfig } from "@/types/unified-components";
+import { cn } from "@/lib/utils";
 
 // ===== 타입 정의 =====
 
 interface FieldOption {
   id: string;
   label: string;
-  type?: string; // text, number, select, checkbox 등
+  type?: string; // text, number, select, checkbox, entity, code 등
   options?: Array<{ value: string; label: string }>; // select 타입일 경우 옵션들
+  // 동적 옵션 로드를 위한 정보
+  entityTable?: string;
+  entityValueColumn?: string;
+  entityLabelColumn?: string;
+  codeGroup?: string;
 }
 
 interface ConditionalConfigPanelProps {
@@ -85,6 +93,86 @@ export function ConditionalConfigPanel({
     return selectableFields.find((f) => f.id === field);
   }, [selectableFields, field]);
 
+  // 동적 옵션 로드 상태
+  const [dynamicOptions, setDynamicOptions] = useState<Array<{ value: string; label: string }>>([]);
+  const [loadingOptions, setLoadingOptions] = useState(false);
+  
+  // Combobox 열림 상태
+  const [comboboxOpen, setComboboxOpen] = useState(false);
+
+  // 엔티티/공통코드 필드 선택 시 동적으로 옵션 로드
+  useEffect(() => {
+    const loadDynamicOptions = async () => {
+      if (!selectedField) {
+        setDynamicOptions([]);
+        return;
+      }
+
+      // 정적 옵션이 있으면 사용
+      if (selectedField.options && selectedField.options.length > 0) {
+        setDynamicOptions([]);
+        return;
+      }
+
+      // 엔티티 타입 (타입이 entity이거나, entityTable이 있으면 엔티티로 간주)
+      if (selectedField.entityTable) {
+        setLoadingOptions(true);
+        try {
+          const { apiClient } = await import("@/lib/api/client");
+          const valueCol = selectedField.entityValueColumn || "id";
+          const labelCol = selectedField.entityLabelColumn || "name";
+          const response = await apiClient.get(`/entity/${selectedField.entityTable}/options`, {
+            params: { value: valueCol, label: labelCol },
+          });
+          if (response.data.success && response.data.data) {
+            setDynamicOptions(response.data.data);
+          }
+        } catch (error) {
+          console.error("엔티티 옵션 로드 실패:", error);
+          setDynamicOptions([]);
+        } finally {
+          setLoadingOptions(false);
+        }
+        return;
+      }
+
+      // 공통코드 타입 (타입이 code이거나, codeGroup이 있으면 공통코드로 간주)
+      if (selectedField.codeGroup) {
+        setLoadingOptions(true);
+        try {
+          const { apiClient } = await import("@/lib/api/client");
+          const response = await apiClient.get(`/common-codes/${selectedField.codeGroup}/items`);
+          if (response.data.success && response.data.data) {
+            setDynamicOptions(
+              response.data.data.map((item: { code: string; codeName: string }) => ({
+                value: item.code,
+                label: item.codeName,
+              }))
+            );
+          }
+        } catch (error) {
+          console.error("공통코드 옵션 로드 실패:", error);
+          setDynamicOptions([]);
+        } finally {
+          setLoadingOptions(false);
+        }
+        return;
+      }
+
+      setDynamicOptions([]);
+    };
+
+    loadDynamicOptions();
+  }, [selectedField?.id, selectedField?.entityTable, selectedField?.entityValueColumn, selectedField?.entityLabelColumn, selectedField?.codeGroup]);
+
+  // 최종 옵션 (정적 + 동적)
+  const fieldOptions = useMemo(() => {
+    if (selectedField?.options && selectedField.options.length > 0) {
+      return selectedField.options;
+    }
+    return dynamicOptions;
+  }, [selectedField?.options, dynamicOptions]);
+
   // config prop 변경 시 로컬 상태 동기화
   useEffect(() => {
     setEnabled(config?.enabled ?? false);
@@ -171,21 +259,66 @@ export function ConditionalConfigPanel({
       );
     }
 
-    // 선택된 필드에 옵션이 있으면 Select로 표시
+    // 옵션 로딩 중
-    if (selectedField?.options && selectedField.options.length > 0) {
+    if (loadingOptions) {
       return (
-        <Select value={value} onValueChange={handleValueChange}>
+        <div className="text-xs text-muted-foreground italic">
-          <SelectTrigger className="h-8 text-xs">
+          옵션 로딩 중...
-            <SelectValue placeholder="값 선택" />
+        </div>
-          </SelectTrigger>
+      );
-          <SelectContent>
+    }
-            {selectedField.options.map((opt) => (
+
-              <SelectItem key={opt.value} value={opt.value} className="text-xs">
+    // 옵션이 있으면 검색 가능한 Combobox로 표시
-                {opt.label}
+    if (fieldOptions.length > 0) {
-              </SelectItem>
+      const selectedOption = fieldOptions.find((opt) => opt.value === value);
-            ))}
+      
-          </SelectContent>
+      return (
-        </Select>
+        <Popover open={comboboxOpen} onOpenChange={setComboboxOpen}>
+          <PopoverTrigger asChild>
+            <Button
+              variant="outline"
+              role="combobox"
+              aria-expanded={comboboxOpen}
+              className="h-8 w-full justify-between text-xs font-normal"
+            >
+              <span className="truncate">
+                {selectedOption ? selectedOption.label : "값 선택"}
+              </span>
+              <ChevronsUpDown className="ml-2 h-3 w-3 shrink-0 opacity-50" />
+            </Button>
+          </PopoverTrigger>
+          <PopoverContent className="w-[300px] p-0" align="start">
+            <Command>
+              <CommandInput placeholder="검색..." className="h-8 text-xs" />
+              <CommandList>
+                <CommandEmpty className="py-2 text-center text-xs">
+                  검색 결과가 없습니다
+                </CommandEmpty>
+                <CommandGroup>
+                  {fieldOptions.map((opt) => (
+                    <CommandItem
+                      key={opt.value}
+                      value={opt.label}
+                      onSelect={() => {
+                        handleValueChange(opt.value);
+                        setComboboxOpen(false);
+                      }}
+                      className="text-xs"
+                    >
+                      <Check
+                        className={cn(
+                          "mr-2 h-3 w-3",
+                          value === opt.value ? "opacity-100" : "opacity-0"
+                        )}
+                      />
+                      <span className="truncate">{opt.label}</span>
+                    </CommandItem>
+                  ))}
+                </CommandGroup>
+              </CommandList>
+            </Command>
+          </PopoverContent>
+        </Popover>
       );
     }
 

frontend/components/unified/UnifiedSelect.tsx

@@ -460,24 +460,31 @@ export const UnifiedSelect = forwardRef<HTMLDivElement, UnifiedSelectProps>(
 
     const [options, setOptions] = useState<SelectOption[]>(config.options || []);
     const [loading, setLoading] = useState(false);
+    const [optionsLoaded, setOptionsLoaded] = useState(false);
 
-    // 데이터 소스에 따른 옵션 로딩
+    // 옵션 로딩에 필요한 값들만 추출 (객체 참조 대신 원시값 사용)
+    const source = config.source;
+    const entityTable = config.entityTable;
+    const entityValueColumn = config.entityValueColumn || config.entityValueField;
+    const entityLabelColumn = config.entityLabelColumn || config.entityLabelField;
+    const codeGroup = config.codeGroup;
+    const table = config.table;
+    const valueColumn = config.valueColumn;
+    const labelColumn = config.labelColumn;
+    const apiEndpoint = config.apiEndpoint;
+    const staticOptions = config.options;
+
+    // 데이터 소스에 따른 옵션 로딩 (원시값 의존성만 사용)
     useEffect(() => {
-      const loadOptions = async () => {
+      // 이미 로드된 경우 스킵 (static 제외)
-        console.log("🎯 UnifiedSelect 전체 props:", props);
+      if (optionsLoaded && source !== "static") {
-        console.log("🎯 UnifiedSelect config:", config);
+        return;
-        console.log("🎯 UnifiedSelect loadOptions 호출:", {
+      }
-          source: config.source,
-          entityTable: config.entityTable,
-          entityValueColumn: config.entityValueColumn,
-          entityLabelColumn: config.entityLabelColumn,
-          codeGroup: config.codeGroup,
-          table: config.table,
-          config,
-        });
 
-        if (config.source === "static") {
+      const loadOptions = async () => {
-          setOptions(config.options || []);
+        if (source === "static") {
+          setOptions(staticOptions || []);
+          setOptionsLoaded(true);
           return;
         }
 
@@ -485,9 +492,9 @@ export const UnifiedSelect = forwardRef<HTMLDivElement, UnifiedSelectProps>(
         try {
           let fetchedOptions: SelectOption[] = [];
 
-          if (config.source === "code" && config.codeGroup) {
+          if (source === "code" && codeGroup) {
             // 공통코드에서 로드
-            const response = await apiClient.get(`/common-codes/${config.codeGroup}/items`);
+            const response = await apiClient.get(`/common-codes/${codeGroup}/items`);
             const data = response.data;
             if (data.success && data.data) {
               fetchedOptions = data.data.map((item: { code: string; codeName: string }) => ({
@@ -495,37 +502,35 @@ export const UnifiedSelect = forwardRef<HTMLDivElement, UnifiedSelectProps>(
                 label: item.codeName,
               }));
             }
-          } else if (config.source === "db" && config.table) {
+          } else if (source === "db" && table) {
             // DB 테이블에서 로드
-            const response = await apiClient.get(`/entity/${config.table}/options`, {
+            const response = await apiClient.get(`/entity/${table}/options`, {
               params: {
-                value: config.valueColumn || "id",
+                value: valueColumn || "id",
-                label: config.labelColumn || "name",
+                label: labelColumn || "name",
               },
             });
             const data = response.data;
             if (data.success && data.data) {
               fetchedOptions = data.data;
             }
-          } else if (config.source === "entity" && config.entityTable) {
+          } else if (source === "entity" && entityTable) {
             // 엔티티(참조 테이블)에서 로드
-            const valueCol = config.entityValueColumn || config.entityValueField || "id";
+            const valueCol = entityValueColumn || "id";
-            const labelCol = config.entityLabelColumn || config.entityLabelField || "name";
+            const labelCol = entityLabelColumn || "name";
-            console.log("🔍 Entity 옵션 API 호출:", `/entity/${config.entityTable}/options`, { value: valueCol, label: labelCol });
+            const response = await apiClient.get(`/entity/${entityTable}/options`, {
-            const response = await apiClient.get(`/entity/${config.entityTable}/options`, {
               params: {
                 value: valueCol,
                 label: labelCol,
               },
             });
             const data = response.data;
-            console.log("🔍 Entity 옵션 API 응답:", data);
             if (data.success && data.data) {
               fetchedOptions = data.data;
             }
-          } else if (config.source === "api" && config.apiEndpoint) {
+          } else if (source === "api" && apiEndpoint) {
             // 외부 API에서 로드
-            const response = await apiClient.get(config.apiEndpoint);
+            const response = await apiClient.get(apiEndpoint);
             const data = response.data;
             if (Array.isArray(data)) {
               fetchedOptions = data;
@@ -533,6 +538,7 @@ export const UnifiedSelect = forwardRef<HTMLDivElement, UnifiedSelectProps>(
           }
 
           setOptions(fetchedOptions);
+          setOptionsLoaded(true);
         } catch (error) {
           console.error("옵션 로딩 실패:", error);
           setOptions([]);
@@ -542,7 +548,7 @@ export const UnifiedSelect = forwardRef<HTMLDivElement, UnifiedSelectProps>(
       };
 
       loadOptions();
-    }, [config]);
+    }, [source, entityTable, entityValueColumn, entityLabelColumn, codeGroup, table, valueColumn, labelColumn, apiEndpoint, staticOptions, optionsLoaded]);
 
     // 모드별 컴포넌트 렌더링
     const renderSelect = () => {

frontend/lib/registry/DynamicComponentRenderer.tsx

@@ -148,6 +148,8 @@ export interface DynamicComponentRendererProps {
   // 탭 관련 정보 (탭 내부의 컴포넌트에서 사용)
   parentTabId?: string;           // 부모 탭 ID
   parentTabsComponentId?: string; // 부모 탭 컴포넌트 ID
+  // 🆕 조건부 비활성화 상태
+  conditionalDisabled?: boolean;
   [key: string]: any;
 }
 
@@ -183,7 +185,8 @@ export const DynamicComponentRenderer: React.FC<DynamicComponentRendererProps> =
       label: (component as any).label,
       required: (component as any).required,
       readonly: (component as any).readonly,
-      disabled: (component as any).disabled || props.disabledFields?.includes(fieldName),
+      // conditionalDisabled가 true이면 비활성화
+      disabled: (component as any).disabled || props.disabledFields?.includes(fieldName) || props.conditionalDisabled,
       value: currentValue,
       onChange: handleChange,
       tableName: (component as any).tableName || props.tableName,

frontend/lib/utils/conditionalEvaluator.ts

@@ -0,0 +1,118 @@
+/**
+ * 조건부 표시 평가 유틸리티
+ * 컴포넌트의 조건부 표시 설정을 평가하여 visible/disabled 상태를 반환합니다.
+ */
+
+import { ComponentData } from "@/types/screen";
+
+export interface ConditionalResult {
+  visible: boolean;
+  disabled: boolean;
+}
+
+export interface ConditionalConfig {
+  enabled: boolean;
+  field: string;
+  operator: "=" | "!=" | ">" | "<" | "in" | "notIn" | "isEmpty" | "isNotEmpty";
+  value: string | string[];
+  action: "show" | "hide" | "enable" | "disable";
+}
+
+/**
+ * 조건부 표시를 평가합니다.
+ * @param conditional - 컴포넌트의 조건부 설정
+ * @param formData - 현재 폼 데이터
+ * @param allComponents - 화면의 모든 컴포넌트 (필드 참조용)
+ * @returns visible/disabled 상태
+ */
+export function evaluateConditional(
+  conditional: ConditionalConfig | undefined,
+  formData: Record<string, any>,
+  allComponents: ComponentData[],
+): ConditionalResult {
+  // 조건부 설정이 없거나 비활성화된 경우 기본값 반환
+  if (!conditional || !conditional.enabled) {
+    return { visible: true, disabled: false };
+  }
+
+  const { field, operator, value, action } = conditional;
+
+  // 필드가 설정되지 않은 경우 기본값 반환
+  if (!field) {
+    console.warn("[evaluateConditional] 조건 필드가 설정되지 않음");
+    return { visible: true, disabled: false };
+  }
+
+  // 참조 필드의 현재 값 가져오기
+  // field 값은 columnName 또는 id일 수 있으므로 양쪽으로 찾기
+  const refComponent = allComponents.find((c) => {
+    const columnName = (c as any)?.columnName;
+    return c.id === field || columnName === field;
+  });
+
+  // formData에서 값 조회: columnName 우선, 없으면 field 값 직접 사용
+  const fieldName = (refComponent as any)?.columnName || field;
+  const fieldValue = formData[fieldName];
+
+  // 조건 평가
+  let conditionMet = false;
+  switch (operator) {
+    case "=":
+      conditionMet = fieldValue === value || String(fieldValue) === String(value);
+      break;
+    case "!=":
+      conditionMet = fieldValue !== value && String(fieldValue) !== String(value);
+      break;
+    case ">":
+      conditionMet = Number(fieldValue) > Number(value);
+      break;
+    case "<":
+      conditionMet = Number(fieldValue) < Number(value);
+      break;
+    case "in":
+      if (Array.isArray(value)) {
+        conditionMet = value.includes(fieldValue) || value.map(String).includes(String(fieldValue));
+      }
+      break;
+    case "notIn":
+      if (Array.isArray(value)) {
+        conditionMet = !value.includes(fieldValue) && !value.map(String).includes(String(fieldValue));
+      } else {
+        conditionMet = true;
+      }
+      break;
+    case "isEmpty":
+      conditionMet =
+        fieldValue === null ||
+        fieldValue === undefined ||
+        fieldValue === "" ||
+        (Array.isArray(fieldValue) && fieldValue.length === 0);
+      break;
+    case "isNotEmpty":
+      conditionMet =
+        fieldValue !== null &&
+        fieldValue !== undefined &&
+        fieldValue !== "" &&
+        !(Array.isArray(fieldValue) && fieldValue.length === 0);
+      break;
+    default:
+      conditionMet = true;
+  }
+
+  // 액션에 따른 결과 반환
+  switch (action) {
+    case "show":
+      // 조건이 참이면 표시, 거짓이면 숨김
+      return { visible: conditionMet, disabled: false };
+    case "hide":
+      // 조건이 참이면 숨김, 거짓이면 표시
+      return { visible: !conditionMet, disabled: false };
+    case "enable":
+      return { visible: true, disabled: !conditionMet };
+    case "disable":
+      return { visible: true, disabled: conditionMet };
+    default:
+      return { visible: true, disabled: false };
+  }
+}
+