diff --git a/src/services/core/wsService.ts b/src/services/core/wsService.ts
index 889888e..ec60b94 100644
--- a/src/services/core/wsService.ts
+++ b/src/services/core/wsService.ts
@@ -619,12 +619,14 @@ class WebSocketService {
       receiver_id: payload.receiver_id,
       category: payload.category,
       system_type: payload.system_type,
-      extra_data: payload.extra_data,
+      extra_data: payload.extra_data || payload.extra || payload.data,
       is_read: !!payload.is_read,
       created_at: payload.created_at || new Date().toISOString(),
     };
     this.emit('notification', m);
-    systemNotificationService.handleWSMessage(m as any).catch(() => {});
+    if (!m.is_read) {
+      systemNotificationService.handleWSMessage(m as any).catch(() => {});
+    }
   }
 
   // Call signaling handlers
diff --git a/src/stores/message/services/WSMessageHandler.ts b/src/stores/message/services/WSMessageHandler.ts
index fa4260a..7b3051f 100644
--- a/src/stores/message/services/WSMessageHandler.ts
+++ b/src/stores/message/services/WSMessageHandler.ts
@@ -131,9 +131,10 @@ export class WSMessageHandler implements IWSMessageHandler {
 
     // 监听系统通知，实时更新系统未读数
     wsService.on('notification', (message: WSNotificationMessage) => {
-      if (!message.is_read) {
-        this.incrementSystemUnread();
+      if (message.is_read) {
+        return;
       }
+      this.incrementSystemUnread();
       if (message.created_at) {
         const store = useMessageStore.getState();
         const currentLast = store.lastSystemMessageAt;