diff --git a/frontend/app/(main)/admin/screenMng/screenMngList/page.tsx b/frontend/app/(main)/admin/screenMng/screenMngList/page.tsx
index 2ff3096b..4be1e746 100644
--- a/frontend/app/(main)/admin/screenMng/screenMngList/page.tsx
+++ b/frontend/app/(main)/admin/screenMng/screenMngList/page.tsx
@@ -22,6 +22,7 @@ import {
   DropdownMenuTrigger,
 } from "@/components/ui/dropdown-menu";
 import CreateScreenModal from "@/components/screen/CreateScreenModal";
+import { Sheet, SheetContent, SheetHeader, SheetTitle, SheetDescription } from "@/components/ui/sheet";
 
 // 단계별 진행을 위한 타입 정의
 type Step = "list" | "design" | "template" | "v2-test";
@@ -39,6 +40,7 @@ export default function ScreenManagementPage() {
   const [loading, setLoading] = useState(true);
   const [searchTerm, setSearchTerm] = useState("");
   const [isCreateOpen, setIsCreateOpen] = useState(false);
+  const [isDetailOpen, setIsDetailOpen] = useState(false);
 
   const tableCount = useMemo(() => new Set(screens.map((s) => s.tableName).filter(Boolean)).size, [screens]);
 
@@ -110,6 +112,7 @@ export default function ScreenManagementPage() {
   // 화면 선택 핸들러 (개별 화면 선택 시 그룹 선택 해제)
   const handleScreenSelect = (screen: ScreenDefinition) => {
     setSelectedScreen(screen);
+    setIsDetailOpen(true);
     setSelectedGroup(null); // 그룹 선택 해제
   };
 
@@ -257,24 +260,6 @@ export default function ScreenManagementPage() {
                 }}
               />
             </div>
-            {/* 선택 미리보기 */}
-            {selectedScreen && (
-              <div className="flex-shrink-0 border-t border-border/50 p-3 bg-muted/5">
-                <div className="flex items-center gap-2 mb-2">
-                  <Monitor className="h-4 w-4 text-primary" />
-                  <span className="text-sm font-medium truncate">{selectedScreen.screenName}</span>
-                </div>
-                <div className="flex items-center gap-3 text-xs text-muted-foreground">
-                  <span className="font-mono">{selectedScreen.screenCode}</span>
-                  <span>{selectedScreen.tableName || "테이블 없음"}</span>
-                </div>
-                <div className="flex gap-2 mt-2">
-                  <Button size="sm" variant="outline" className="h-7 text-xs flex-1" onClick={() => handleDesignScreen(selectedScreen)}>
-                    편집
-                  </Button>
-                </div>
-              </div>
-            )}
           </div>
 
           {/* 오른쪽: 관계 시각화 (React Flow) */}
@@ -320,6 +305,38 @@ export default function ScreenManagementPage() {
         </div>
       )}
 
+      {/* 화면 디테일 Sheet */}
+      <Sheet open={isDetailOpen} onOpenChange={setIsDetailOpen}>
+        <SheetContent className="w-[420px] sm:max-w-[420px]">
+          <SheetHeader>
+            <SheetTitle className="text-base">{selectedScreen?.screenName || "화면 상세"}</SheetTitle>
+            <SheetDescription className="text-xs font-mono">{selectedScreen?.screenCode}</SheetDescription>
+          </SheetHeader>
+          {selectedScreen && (
+            <div className="mt-6 space-y-4">
+              <div className="space-y-3">
+                <div className="flex items-center justify-between">
+                  <span className="text-xs text-muted-foreground">테이블</span>
+                  <span className="text-xs font-mono">{selectedScreen.tableName || "없음"}</span>
+                </div>
+                <div className="flex items-center justify-between">
+                  <span className="text-xs text-muted-foreground">화면 ID</span>
+                  <span className="text-xs font-mono">{selectedScreen.screenId}</span>
+                </div>
+              </div>
+              <div className="flex gap-2 pt-4 border-t border-border/50">
+                <Button className="flex-1" onClick={() => { handleDesignScreen(selectedScreen); setIsDetailOpen(false); }}>
+                  편집하기
+                </Button>
+                <Button variant="outline" onClick={() => setIsDetailOpen(false)}>
+                  닫기
+                </Button>
+              </div>
+            </div>
+          )}
+        </SheetContent>
+      </Sheet>
+
       {/* 화면 생성 모달 */}
       <CreateScreenModal
         open={isCreateOpen}
diff --git a/frontend/components/screen/ScreenRelationFlow.tsx b/frontend/components/screen/ScreenRelationFlow.tsx
index 59ced0ec..24ce0ac1 100644
--- a/frontend/components/screen/ScreenRelationFlow.tsx
+++ b/frontend/components/screen/ScreenRelationFlow.tsx
@@ -4,6 +4,7 @@ import React, { useState, useEffect, useCallback } from "react";
 import {
   ReactFlow,
   Controls,
+  MiniMap,
   Background,
   BackgroundVariant,
   Node,
@@ -2393,8 +2394,26 @@ function ScreenRelationFlowInner({ screen, selectedGroup, initialFocusedScreenId
               </filter>
             </defs>
           </svg>
-          <Background variant={BackgroundVariant.Dots} gap={20} size={1} color="hsl(var(--border))" />
-        <Controls position="bottom-right" />
+          <Background id="bg-dots" variant={BackgroundVariant.Dots} gap={16} size={0.5} color="hsl(var(--border) / 0.3)" />
+          <Background id="bg-lines" variant={BackgroundVariant.Lines} gap={120} color="hsl(var(--border) / 0.08)" />
+        <Controls position="top-right" />
+        <MiniMap
+          position="bottom-right"
+          nodeColor={(node) => {
+            if (node.type === "screenNode") return "hsl(var(--primary))";
+            if (node.type === "tableNode") return "hsl(var(--warning))";
+            return "hsl(var(--muted-foreground))";
+          }}
+          nodeStrokeWidth={2}
+          zoomable
+          pannable
+          style={{
+            background: "hsl(var(--card) / 0.8)",
+            border: "1px solid hsl(var(--border) / 0.5)",
+            borderRadius: "8px",
+            marginBottom: "8px",
+          }}
+        />
         {/* 관계 범례 */}
         <div className="absolute bottom-4 left-4 z-10 rounded-lg border bg-card/90 backdrop-blur-sm p-3 shadow-md">
           <p className="text-[10px] font-medium text-muted-foreground mb-2">관계 유형</p>