diff --git a/frontend/app/(main)/screens/[screenId]/page.tsx b/frontend/app/(main)/screens/[screenId]/page.tsx
index 5ce253cb..86362ec8 100644
--- a/frontend/app/(main)/screens/[screenId]/page.tsx
+++ b/frontend/app/(main)/screens/[screenId]/page.tsx
@@ -221,6 +221,7 @@ function ScreenViewPage() {
     // 모바일 환경에서는 스케일 조정 비활성화 (반응형만 작동)
     if (isMobile) {
       setScale(1);
+      setLayoutReady(true); // 모바일에서도 레이아웃 준비 완료 표시
       return;
     }
 
diff --git a/frontend/components/layout/AppLayout.tsx b/frontend/components/layout/AppLayout.tsx
index 0d23a88e..449a9c49 100644
--- a/frontend/components/layout/AppLayout.tsx
+++ b/frontend/components/layout/AppLayout.tsx
@@ -423,28 +423,80 @@ function AppLayoutInner({ children }: AppLayoutProps) {
   const uiMenus = convertMenuToUI(currentMenus, user as ExtendedUserInfo);
 
   return (
-    <div className="flex h-screen bg-white">
-      {/* 모바일 사이드바 오버레이 */}
-      {sidebarOpen && isMobile && (
-        <div className="fixed inset-0 z-30 bg-black/50 lg:hidden" onClick={() => setSidebarOpen(false)} />
+    <div className="flex h-screen flex-col bg-white">
+      {/* 모바일 헤더 - 모바일에서만 표시 */}
+      {isMobile && (
+        <header className="fixed top-0 left-0 right-0 z-50 flex h-14 items-center justify-between border-b border-slate-200 bg-white px-4">
+          <div className="flex items-center gap-3">
+            {/* 햄버거 메뉴 버튼 */}
+            <SideMenu onSidebarToggle={() => setSidebarOpen(!sidebarOpen)} />
+            <Logo />
+          </div>
+          {/* 사용자 드롭다운 */}
+          <DropdownMenu modal={false}>
+            <DropdownMenuTrigger asChild>
+              <button className="flex items-center gap-2 rounded-lg px-2 py-1 transition-colors hover:bg-slate-100">
+                <div className="relative flex h-8 w-8 shrink-0 overflow-hidden rounded-full">
+                  {user.photo && user.photo.trim() !== "" && user.photo !== "null" ? (
+                    <img
+                      src={user.photo}
+                      alt={user.userName || "User"}
+                      className="aspect-square h-full w-full object-cover"
+                    />
+                  ) : (
+                    <div className="flex h-full w-full items-center justify-center rounded-full bg-slate-200 text-sm font-semibold text-slate-700">
+                      {user.userName?.substring(0, 1)?.toUpperCase() || "U"}
+                    </div>
+                  )}
+                </div>
+              </button>
+            </DropdownMenuTrigger>
+            <DropdownMenuContent className="w-56" align="end">
+              <DropdownMenuLabel className="font-normal">
+                <div className="flex flex-col space-y-1">
+                  <p className="text-sm leading-none font-medium">
+                    {user.userName || "사용자"}
+                  </p>
+                  <p className="text-muted-foreground text-xs leading-none">
+                    {user.deptName || user.email || user.userId}
+                  </p>
+                </div>
+              </DropdownMenuLabel>
+              <DropdownMenuSeparator />
+              <DropdownMenuItem onClick={openProfileModal}>
+                <User className="mr-2 h-4 w-4" />
+                <span>프로필</span>
+              </DropdownMenuItem>
+              <DropdownMenuItem onClick={handleLogout}>
+                <LogOut className="mr-2 h-4 w-4" />
+                <span>로그아웃</span>
+              </DropdownMenuItem>
+            </DropdownMenuContent>
+          </DropdownMenu>
+        </header>
       )}
 
-      {/* 왼쪽 사이드바 */}
-      <aside
-        className={`${
-          isMobile
-            ? (sidebarOpen ? "translate-x-0" : "-translate-x-full") + " fixed top-0 left-0 z-40"
-            : "relative z-auto translate-x-0"
-        } flex h-screen w-[200px] flex-col border-r border-slate-200 bg-white transition-transform duration-300`}
-      >
-        {/* 사이드바 최상단 - 로고 + 모바일 햄버거 메뉴 */}
-        <div className="flex h-14 items-center justify-between border-b border-slate-200 px-4">
-          <Logo />
-          {/* 모바일 햄버거 메뉴 버튼 */}
-          <div className="lg:hidden">
-            <SideMenu onSidebarToggle={() => setSidebarOpen(!sidebarOpen)} />
-          </div>
-        </div>
+      {/* 메인 컨테이너 - 모바일에서는 헤더 높이만큼 패딩 */}
+      <div className={`flex flex-1 ${isMobile ? "pt-14" : ""}`}>
+        {/* 모바일 사이드바 오버레이 */}
+        {sidebarOpen && isMobile && (
+          <div className="fixed inset-0 z-30 bg-black/50 lg:hidden" onClick={() => setSidebarOpen(false)} />
+        )}
+
+        {/* 왼쪽 사이드바 */}
+        <aside
+          className={`${
+            isMobile
+              ? (sidebarOpen ? "translate-x-0" : "-translate-x-full") + " fixed top-14 left-0 z-40 h-[calc(100vh-56px)]"
+              : "relative z-auto h-screen translate-x-0"
+          } flex w-[200px] flex-col border-r border-slate-200 bg-white transition-transform duration-300`}
+        >
+          {/* 사이드바 최상단 - 로고 (데스크톱에서만 표시) */}
+          {!isMobile && (
+            <div className="flex h-14 items-center justify-between border-b border-slate-200 px-4">
+              <Logo />
+            </div>
+          )}
 
         {/* Admin/User 모드 전환 버튼 (관리자만) */}
         {((user as ExtendedUserInfo)?.userType === "SUPER_ADMIN" ||
@@ -565,10 +617,11 @@ function AppLayoutInner({ children }: AppLayoutProps) {
         </div>
       </aside>
 
-      {/* 가운데 컨텐츠 영역 - 스크롤 가능 */}
-      <main className="h-screen min-w-0 flex-1 overflow-auto bg-white">
-        {children}
-      </main>
+        {/* 가운데 컨텐츠 영역 - 스크롤 가능 */}
+        <main className={`min-w-0 flex-1 overflow-auto bg-white ${isMobile ? "h-[calc(100vh-56px)]" : "h-screen"}`}>
+          {children}
+        </main>
+      </div>
 
       {/* 프로필 수정 모달 */}
       <ProfileModal