diff --git a/frontend/lib/registry/DynamicComponentRenderer.tsx b/frontend/lib/registry/DynamicComponentRenderer.tsx
index 72eab245..92cd31dd 100644
--- a/frontend/lib/registry/DynamicComponentRenderer.tsx
+++ b/frontend/lib/registry/DynamicComponentRenderer.tsx
@@ -200,12 +200,21 @@ export const DynamicComponentRenderer: React.FC<DynamicComponentRendererProps> =
 
         // onChange 핸들러 - 컴포넌트 타입에 따라 다르게 처리
         const handleChange = (value: any) => {
+          // React 이벤트 객체인 경우 값 추출
+          let actualValue = value;
+          if (value && typeof value === "object" && value.nativeEvent && value.target) {
+            // SyntheticEvent인 경우 target.value 추출
+            actualValue = value.target.value;
+            console.log("⚠️ DynamicComponentRenderer: 이벤트 객체 감지, value 추출:", actualValue);
+          }
+
           console.log("🔄 DynamicComponentRenderer handleChange 호출:", {
             componentType,
             fieldName,
-            value,
-            valueType: typeof value,
-            isArray: Array.isArray(value),
+            originalValue: value,
+            actualValue,
+            valueType: typeof actualValue,
+            isArray: Array.isArray(actualValue),
           });
 
           if (onFormDataChange) {
@@ -213,11 +222,11 @@ export const DynamicComponentRenderer: React.FC<DynamicComponentRendererProps> =
             // 단순 input 컴포넌트는 (fieldName, value) 형태로 전달받음
             if (componentType === "repeater-field-group" || componentType === "repeater") {
               // fieldName과 함께 전달
-              console.log("💾 RepeaterInput 데이터 저장:", fieldName, value);
-              onFormDataChange(fieldName, value);
+              console.log("💾 RepeaterInput 데이터 저장:", fieldName, actualValue);
+              onFormDataChange(fieldName, actualValue);
             } else {
               // 이미 fieldName이 포함된 경우는 그대로 전달
-              onFormDataChange(fieldName, value);
+              onFormDataChange(fieldName, actualValue);
             }
           }
         };
diff --git a/frontend/lib/registry/components/text-input/TextInputComponent.tsx b/frontend/lib/registry/components/text-input/TextInputComponent.tsx
index bdf41276..fcb88455 100644
--- a/frontend/lib/registry/components/text-input/TextInputComponent.tsx
+++ b/frontend/lib/registry/components/text-input/TextInputComponent.tsx
@@ -325,11 +325,8 @@ export const TextInputComponent: React.FC<TextInputComponentProps> = ({
               setEmailUsername(newUsername);
               const fullEmail = `${newUsername}@${emailDomain}`;
 
-              if (isInteractive && formData && onFormDataChange && component.columnName) {
-                onFormDataChange({
-                  ...formData,
-                  [component.columnName]: fullEmail,
-                });
+              if (isInteractive && onFormDataChange && component.columnName) {
+                onFormDataChange(component.columnName, fullEmail);
               }
             }}
             className={`h-full flex-1 rounded-md border px-3 py-2 text-sm transition-all duration-200 outline-none ${isSelected ? "border-blue-500 ring-2 ring-blue-100" : "border-gray-300"} ${componentConfig.disabled ? "bg-gray-100 text-gray-400" : "bg-white text-gray-900"} focus:border-orange-500 focus:ring-2 focus:ring-orange-100 disabled:cursor-not-allowed`}
@@ -367,11 +364,8 @@ export const TextInputComponent: React.FC<TextInputComponentProps> = ({
                     setEmailDomain(value);
                     const fullEmail = `${emailUsername}@${value}`;
 
-                    if (isInteractive && formData && onFormDataChange && component.columnName) {
-                      onFormDataChange({
-                        ...formData,
-                        [component.columnName]: fullEmail,
-                      });
+                    if (isInteractive && onFormDataChange && component.columnName) {
+                      onFormDataChange(component.columnName, fullEmail);
                     }
                   }}
                 />
@@ -388,11 +382,8 @@ export const TextInputComponent: React.FC<TextInputComponentProps> = ({
                             setEmailDomain(currentValue);
                             const fullEmail = `${emailUsername}@${currentValue}`;
 
-                            if (isInteractive && formData && onFormDataChange && component.columnName) {
-                              onFormDataChange({
-                                ...formData,
-                                [component.columnName]: fullEmail,
-                              });
+                            if (isInteractive && onFormDataChange && component.columnName) {
+                              onFormDataChange(component.columnName, fullEmail);
                             }
                             setEmailDomainOpen(false);
                           }}
@@ -437,11 +428,8 @@ export const TextInputComponent: React.FC<TextInputComponentProps> = ({
               setTelPart1(value);
               const fullTel = `${value}-${telPart2}-${telPart3}`;
 
-              if (isInteractive && formData && onFormDataChange && component.columnName) {
-                onFormDataChange({
-                  ...formData,
-                  [component.columnName]: fullTel,
-                });
+              if (isInteractive && onFormDataChange && component.columnName) {
+                onFormDataChange(component.columnName, fullTel);
               }
             }}
             className={`h-full flex-1 rounded-md border px-3 py-2 text-center text-sm transition-all duration-200 outline-none ${isSelected ? "border-blue-500 ring-2 ring-blue-100" : "border-gray-300"} ${componentConfig.disabled ? "bg-gray-100 text-gray-400" : "bg-white text-gray-900"} focus:border-orange-500 focus:ring-2 focus:ring-orange-100 disabled:cursor-not-allowed`}
@@ -462,11 +450,8 @@ export const TextInputComponent: React.FC<TextInputComponentProps> = ({
               setTelPart2(value);
               const fullTel = `${telPart1}-${value}-${telPart3}`;
 
-              if (isInteractive && formData && onFormDataChange && component.columnName) {
-                onFormDataChange({
-                  ...formData,
-                  [component.columnName]: fullTel,
-                });
+              if (isInteractive && onFormDataChange && component.columnName) {
+                onFormDataChange(component.columnName, fullTel);
               }
             }}
             className={`h-full flex-1 rounded-md border px-3 py-2 text-center text-sm transition-all duration-200 outline-none ${isSelected ? "border-blue-500 ring-2 ring-blue-100" : "border-gray-300"} ${componentConfig.disabled ? "bg-gray-100 text-gray-400" : "bg-white text-gray-900"} focus:border-orange-500 focus:ring-2 focus:ring-orange-100 disabled:cursor-not-allowed`}
@@ -487,11 +472,8 @@ export const TextInputComponent: React.FC<TextInputComponentProps> = ({
               setTelPart3(value);
               const fullTel = `${telPart1}-${telPart2}-${value}`;
 
-              if (isInteractive && formData && onFormDataChange && component.columnName) {
-                onFormDataChange({
-                  ...formData,
-                  [component.columnName]: fullTel,
-                });
+              if (isInteractive && onFormDataChange && component.columnName) {
+                onFormDataChange(component.columnName, fullTel);
               }
             }}
             className={`h-full flex-1 rounded-md border px-3 py-2 text-center text-sm transition-all duration-200 outline-none ${isSelected ? "border-blue-500 ring-2 ring-blue-100" : "border-gray-300"} ${componentConfig.disabled ? "bg-gray-100 text-gray-400" : "bg-white text-gray-900"} focus:border-orange-500 focus:ring-2 focus:ring-orange-100 disabled:cursor-not-allowed`}
@@ -523,11 +505,8 @@ export const TextInputComponent: React.FC<TextInputComponentProps> = ({
               setUrlProtocol(newProtocol);
               const fullUrl = `${newProtocol}${urlDomain}`;
 
-              if (isInteractive && formData && onFormDataChange && component.columnName) {
-                onFormDataChange({
-                  ...formData,
-                  [component.columnName]: fullUrl,
-                });
+              if (isInteractive && onFormDataChange && component.columnName) {
+                onFormDataChange(component.columnName, fullUrl);
               }
             }}
             className={`h-full w-[100px] cursor-pointer rounded-md border px-2 py-2 text-sm transition-all duration-200 outline-none ${isSelected ? "border-blue-500 ring-2 ring-blue-100" : "border-gray-300"} ${componentConfig.disabled ? "bg-gray-100 text-gray-400" : "bg-white text-gray-900"} focus:border-orange-500 focus:ring-2 focus:ring-orange-100 disabled:cursor-not-allowed`}
@@ -548,11 +527,8 @@ export const TextInputComponent: React.FC<TextInputComponentProps> = ({
               setUrlDomain(newDomain);
               const fullUrl = `${urlProtocol}${newDomain}`;
 
-              if (isInteractive && formData && onFormDataChange && component.columnName) {
-                onFormDataChange({
-                  ...formData,
-                  [component.columnName]: fullUrl,
-                });
+              if (isInteractive && onFormDataChange && component.columnName) {
+                onFormDataChange(component.columnName, fullUrl);
               }
             }}
             className={`h-full flex-1 rounded-md border px-3 py-2 text-sm transition-all duration-200 outline-none ${isSelected ? "border-blue-500 ring-2 ring-blue-100" : "border-gray-300"} ${componentConfig.disabled ? "bg-gray-100 text-gray-400" : "bg-white text-gray-900"} focus:border-orange-500 focus:ring-2 focus:ring-orange-100 disabled:cursor-not-allowed`}
@@ -595,11 +571,8 @@ export const TextInputComponent: React.FC<TextInputComponentProps> = ({
           required={componentConfig.required || false}
           readOnly={componentConfig.readonly || false}
           onChange={(e) => {
-            if (isInteractive && formData && onFormDataChange && component.columnName) {
-              onFormDataChange({
-                ...formData,
-                [component.columnName]: e.target.value,
-              });
+            if (isInteractive && onFormDataChange && component.columnName) {
+              onFormDataChange(component.columnName, e.target.value);
             }
           }}
           className={`box-border h-full w-full max-w-full resize-none rounded-md border px-3 py-2 text-sm transition-all duration-200 outline-none ${isSelected ? "border-blue-500 ring-2 ring-blue-100" : "border-gray-300"} ${componentConfig.disabled ? "bg-gray-100 text-gray-400" : "bg-white text-gray-900"} placeholder:text-gray-400 focus:border-orange-500 focus:ring-2 focus:ring-orange-100 disabled:cursor-not-allowed`}
@@ -625,10 +598,13 @@ export const TextInputComponent: React.FC<TextInputComponentProps> = ({
 
           if (isInteractive && formData && component.columnName) {
             // 인터랙티브 모드: formData 우선, 없으면 자동생성 값
-            displayValue = formData[component.columnName] || autoGeneratedValue || "";
+            const rawValue = formData[component.columnName] || autoGeneratedValue || "";
+            // 객체인 경우 빈 문자열로 변환 (에러 방지)
+            displayValue = typeof rawValue === "object" ? "" : String(rawValue);
           } else {
             // 디자인 모드: component.value 우선, 없으면 자동생성 값
-            displayValue = component.value || autoGeneratedValue || "";
+            const rawValue = component.value || autoGeneratedValue || "";
+            displayValue = typeof rawValue === "object" ? "" : String(rawValue);
           }
 
           console.log("📄 Input 값 계산:", {
@@ -636,9 +612,11 @@ export const TextInputComponent: React.FC<TextInputComponentProps> = ({
             hasFormData: !!formData,
             columnName: component.columnName,
             formDataValue: formData?.[component.columnName],
+            formDataValueType: typeof formData?.[component.columnName],
             componentValue: component.value,
             autoGeneratedValue,
             finalDisplayValue: displayValue,
+            isObject: typeof displayValue === "object",
           });
 
           return displayValue;
@@ -670,23 +648,28 @@ export const TextInputComponent: React.FC<TextInputComponentProps> = ({
 
           // isInteractive 모드에서는 formData 업데이트
           if (isInteractive && onFormDataChange && component.columnName) {
-            // console.log(`📤 TextInputComponent -> onFormDataChange 호출: ${component.columnName} = "${newValue}"`);
-            console.log("🔍 onFormDataChange 함수 정보:", {
-              functionName: onFormDataChange.name,
-              functionString: onFormDataChange.toString().substring(0, 200),
+            console.log(`✅ TextInputComponent onChange 조건 충족:`, {
+              columnName: component.columnName,
+              newValue,
+              valueType: typeof newValue,
+              isInteractive,
+              hasOnFormDataChange: !!onFormDataChange,
+              onFormDataChangeType: typeof onFormDataChange,
             });
             onFormDataChange(component.columnName, newValue);
+            console.log(`✅ onFormDataChange 호출 완료`);
           } else {
             console.log("❌ TextInputComponent onFormDataChange 조건 미충족:", {
               isInteractive,
               hasOnFormDataChange: !!onFormDataChange,
               hasColumnName: !!component.columnName,
+              columnName: component.columnName,
             });
           }
 
-          // 기존 onChange 핸들러도 호출
+          // props.onChange는 DynamicComponentRenderer의 handleChange
+          // 이벤트 객체 감지 및 값 추출 로직이 있으므로 안전하게 호출 가능
           if (props.onChange) {
-            // console.log(`📤 TextInputComponent -> props.onChange 호출: "${newValue}"`);
             props.onChange(newValue);
           }
         }}