diff --git a/frontend/components/layout/AppLayout.tsx b/frontend/components/layout/AppLayout.tsx
index 1d16e5b4..a32332b2 100644
--- a/frontend/components/layout/AppLayout.tsx
+++ b/frontend/components/layout/AppLayout.tsx
@@ -685,7 +685,7 @@ function AppLayoutInner({ children }: AppLayoutProps) {
 
   const uiMenus = user ? convertMenuToUI(currentMenus, user as ExtendedUserInfo) : [];
 
-  // 활성 탭에 해당하는 메뉴가 속한 부모 메뉴 자동 확장
+  // 활성 탭이 바뀔 때만 해당 부모 메뉴 자동 확장 (collapse 후 즉시 재펼침 방지)
   useEffect(() => {
     if (!activeTab || uiMenus.length === 0) return;
 
@@ -693,19 +693,25 @@ function AppLayoutInner({ children }: AppLayoutProps) {
     for (const menu of uiMenus) {
       if (menu.hasChildren && menu.children) {
         const hasActiveChild = menu.children.some((child: any) => isMenuActive(child));
-        if (hasActiveChild && !expandedMenus.has(menu.id)) {
-          toExpand.push(menu.id);
-        }
+        if (hasActiveChild) toExpand.push(menu.id);
       }
     }
     if (toExpand.length > 0) {
       setExpandedMenus((prev) => {
+        let changed = false;
         const next = new Set(prev);
-        toExpand.forEach((id) => next.add(id));
-        return next;
+        toExpand.forEach((id) => {
+          if (!next.has(id)) {
+            next.add(id);
+            changed = true;
+          }
+        });
+        return changed ? next : prev;
       });
     }
-  }, [activeTab, uiMenus, isMenuActive, expandedMenus]);
+    // expandedMenus / uiMenus / isMenuActive 는 의존성에서 제외 — 활성 탭 변경 시에만 재평가
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [activeTab?.id]);
 
   if (!user) {
     return (