diff --git a/frontend/src/App.css b/frontend/src/App.css
index 90c0c6c..0c24079 100644
--- a/frontend/src/App.css
+++ b/frontend/src/App.css
@@ -71,6 +71,17 @@ body {
   100% { transform: rotate(360deg); }
 }
 
+@keyframes pulse {
+  0%, 100% { 
+    opacity: 1;
+    transform: scale(1);
+  }
+  50% { 
+    opacity: 0.8;
+    transform: scale(1.05);
+  }
+}
+
 /* 접근 거부 페이지 */
 .access-denied-container {
   display: flex;
diff --git a/frontend/src/App.jsx b/frontend/src/App.jsx
index 219b4d7..4c2117a 100644
--- a/frontend/src/App.jsx
+++ b/frontend/src/App.jsx
@@ -27,6 +27,19 @@ function App() {
   const [newProjectCode, setNewProjectCode] = useState('');
   const [newProjectName, setNewProjectName] = useState('');
   const [newClientName, setNewClientName] = useState('');
+  const [pendingSignupCount, setPendingSignupCount] = useState(0);
+
+  // 승인 대기 중인 회원가입 수 조회
+  const loadPendingSignups = async () => {
+    try {
+      const response = await api.get('/auth/signup-requests');
+      if (response.data && response.data.requests) {
+        setPendingSignupCount(response.data.count || 0);
+      }
+    } catch (error) {
+      // 에러 무시 (관리자가 아니면 403)
+    }
+  };
 
   // 프로젝트 목록 로드
   const loadProjects = async () => {
@@ -104,8 +117,18 @@ function App() {
     
     if (token && userData) {
       setIsAuthenticated(true);
-      setUser(JSON.parse(userData));
+      const userObj = JSON.parse(userData);
+      setUser(userObj);
       loadProjects(); // 프로젝트 목록 로드
+      
+      // 관리자인 경우 승인 대기 수 조회
+      if (userObj.role === 'admin' || userObj.role === 'system') {
+        loadPendingSignups();
+        
+        // 30초마다 갱신
+        const interval = setInterval(loadPendingSignups, 30000);
+        return () => clearInterval(interval);
+      }
     }
     
     setIsLoading(false);
@@ -247,11 +270,65 @@ function App() {
                 </p>
               </div>
               
-              {/* 사용자 메뉴 */}
-              <div className="user-menu-container" style={{ position: 'relative' }}>
-                <button
-                  onClick={() => setShowUserMenu(!showUserMenu)}
-                  style={{
+              {/* 알람 및 사용자 메뉴 */}
+              <div style={{ display: 'flex', gap: '12px', alignItems: 'center' }}>
+                {/* 회원가입 승인 알람 (관리자 전용) */}
+                {(user?.role === 'admin' || user?.role === 'system') && pendingSignupCount > 0 && (
+                  <button
+                    onClick={() => navigateToPage('user-management')}
+                    style={{
+                      position: 'relative',
+                      width: '44px',
+                      height: '44px',
+                      background: '#fef3c7',
+                      border: '2px solid #f59e0b',
+                      borderRadius: '50%',
+                      cursor: 'pointer',
+                      display: 'flex',
+                      alignItems: 'center',
+                      justifyContent: 'center',
+                      fontSize: '20px',
+                      transition: 'all 0.2s ease',
+                      animation: 'pulse 2s ease-in-out infinite'
+                    }}
+                    title={`회원가입 승인 대기: ${pendingSignupCount}명`}
+                    onMouseEnter={(e) => {
+                      e.target.style.background = '#fde68a';
+                      e.target.style.transform = 'scale(1.1)';
+                    }}
+                    onMouseLeave={(e) => {
+                      e.target.style.background = '#fef3c7';
+                      e.target.style.transform = 'scale(1)';
+                    }}
+                  >
+                    🔔
+                    <div style={{
+                      position: 'absolute',
+                      top: '-4px',
+                      right: '-4px',
+                      background: '#ef4444',
+                      color: 'white',
+                      borderRadius: '50%',
+                      width: '22px',
+                      height: '22px',
+                      display: 'flex',
+                      alignItems: 'center',
+                      justifyContent: 'center',
+                      fontSize: '11px',
+                      fontWeight: '700',
+                      border: '2px solid white',
+                      boxShadow: '0 2px 4px rgba(0,0,0,0.2)'
+                    }}>
+                      {pendingSignupCount}
+                    </div>
+                  </button>
+                )}
+                
+                {/* 사용자 메뉴 */}
+                <div className="user-menu-container" style={{ position: 'relative' }}>
+                  <button
+                    onClick={() => setShowUserMenu(!showUserMenu)}
+                    style={{
                     display: 'flex',
                     alignItems: 'center',
                     gap: '8px',