diff --git a/projects/ucap-webmessenger-app/src/app/services/notification.service.ts b/projects/ucap-webmessenger-app/src/app/services/notification.service.ts
index 7f9eff2c..dbec144a 100644
--- a/projects/ucap-webmessenger-app/src/app/services/notification.service.ts
+++ b/projects/ucap-webmessenger-app/src/app/services/notification.service.ts
@@ -209,10 +209,9 @@ export class AppNotificationService {
               (state: any) =>
                 state.messenger.sync.room.entities as Dictionary<RoomInfo>
             )
-          ),
-          this.nativeService.windowStateChanged()
+          )
         ),
-        tap(([notiOrRes, curRoomInfo, roomList, windowStateChanged]) => {
+        tap(([notiOrRes, curRoomInfo, roomList]) => {
           switch (notiOrRes.SSVC_TYPE) {
             case SSVC_TYPE_EVENT_SEND_RES:
             case SSVC_TYPE_EVENT_SEND_NOTI:
@@ -241,14 +240,16 @@ export class AppNotificationService {
                     doNoti = false;
                   }
 
+                  const windowState = this.nativeService.getWindowState();
+
                   // 현재 열려 있는 방일경우 노티 안함.
                   if (
                     !!curRoomInfo &&
                     !!curRoomInfo.roomSeq &&
                     curRoomInfo.roomSeq === noti.roomSeq &&
-                    !!windowStateChanged &&
-                    windowStateChanged !== WindowState.Minimized &&
-                    windowStateChanged !== WindowState.Hidden
+                    !!windowState &&
+                    windowState !== WindowState.Minimized &&
+                    windowState !== WindowState.Hidden
                   ) {
                     doNoti = false;
                   }
diff --git a/projects/ucap-webmessenger-native-browser/src/lib/services/browser-native.service.ts b/projects/ucap-webmessenger-native-browser/src/lib/services/browser-native.service.ts
index cb833db0..88daa6e3 100644
--- a/projects/ucap-webmessenger-native-browser/src/lib/services/browser-native.service.ts
+++ b/projects/ucap-webmessenger-native-browser/src/lib/services/browser-native.service.ts
@@ -227,6 +227,9 @@ export class BrowserNativeService extends NativeService {
   windowMinimize(): void {}
 
   windowMaximize(): void {}
+  getWindowState(): WindowState {
+    return WindowState.Normal;
+  }
 
   appExit(): void {}
 
diff --git a/projects/ucap-webmessenger-native-electron/src/lib/services/electron-native.service.ts b/projects/ucap-webmessenger-native-electron/src/lib/services/electron-native.service.ts
index 7a16a116..3114ae0c 100644
--- a/projects/ucap-webmessenger-native-electron/src/lib/services/electron-native.service.ts
+++ b/projects/ucap-webmessenger-native-electron/src/lib/services/electron-native.service.ts
@@ -391,6 +391,22 @@ export class ElectronNativeService implements NativeService {
     }
   }
 
+  getWindowState(): WindowState {
+    if (!remote.getCurrentWindow().isVisible()) {
+      return WindowState.Hidden;
+    } else if (remote.getCurrentWindow().isMinimized()) {
+      return WindowState.Minimized;
+    } else if (remote.getCurrentWindow().isNormal()) {
+      return WindowState.Normal;
+    } else if (remote.getCurrentWindow().isMaximized()) {
+      return WindowState.Maximized;
+    } else if (remote.getCurrentWindow().isFullScreen()) {
+      return WindowState.FullScreen;
+    } else {
+      return WindowState.Normal;
+    }
+  }
+
   appExit(): void {
     this.ipcRenderer.send(AppChannel.Exit);
   }
diff --git a/projects/ucap-webmessenger-native/src/lib/services/native.service.ts b/projects/ucap-webmessenger-native/src/lib/services/native.service.ts
index 03f97d15..66a40df4 100644
--- a/projects/ucap-webmessenger-native/src/lib/services/native.service.ts
+++ b/projects/ucap-webmessenger-native/src/lib/services/native.service.ts
@@ -72,6 +72,7 @@ export abstract class NativeService {
   abstract windowClose(): void;
   abstract windowMinimize(): void;
   abstract windowMaximize(): void;
+  abstract getWindowState(): WindowState;
   abstract zoomTo(factor: number): Promise<number>;
   abstract appExit(): void;