diff --git a/backend/internal/modules/chat/message.go b/backend/internal/modules/chat/message.go
index e530689..f422074 100644
--- a/backend/internal/modules/chat/message.go
+++ b/backend/internal/modules/chat/message.go
@@ -136,7 +136,7 @@ func (r *Repository) SendMessage(ctx context.Context, principal Principal, conve
 	// 推送新消息事件给会话中的在线参与者
 	if r.hub != nil {
 		msg := items[0]
-		r.hub.NotifyConversation(conversationID, &chathub.ChatEvent{
+		event := &chathub.ChatEvent{
 			Type:           "new_message",
 			ConversationID: conversationID,
 			Message: &chathub.MessageData{
@@ -151,7 +151,11 @@ func (r *Repository) SendMessage(ctx context.Context, principal Principal, conve
 				AttachmentURLS: msg.AttachmentURLS,
 				CreatedAt:      msg.CreatedAt.Format(time.RFC3339),
 			},
-		})
+		}
+		r.hub.NotifyConversation(conversationID, event)
+		// 同时广播给所有在线客服，使「未分配 / 全部」视图实时刷新；
+		// 参与者客服会重复收到，由前端按消息 id 去重。
+		r.hub.NotifyAllAdmins(event)
 	}
 	return &items[0], nil
 }
diff --git a/backend/internal/modules/chat/repository.go b/backend/internal/modules/chat/repository.go
index 9bb8b67..21d73e1 100644
--- a/backend/internal/modules/chat/repository.go
+++ b/backend/internal/modules/chat/repository.go
@@ -102,8 +102,11 @@ func (r *Repository) NotifyNewConversation(conversationID uint64) {
 	if r.hub == nil {
 		return
 	}
-	r.hub.NotifyConversation(conversationID, &chathub.ChatEvent{
+	event := &chathub.ChatEvent{
 		Type:           "conversation_updated",
 		ConversationID: conversationID,
-	})
+	}
+	r.hub.NotifyConversation(conversationID, event)
+	// 新会话（如未分配的平台咨询）需让所有在线客服的列表实时出现。
+	r.hub.NotifyAllAdmins(event)
 }
diff --git a/backend/internal/modules/chathub/hub.go b/backend/internal/modules/chathub/hub.go
index 53e8b84..4f33090 100644
--- a/backend/internal/modules/chathub/hub.go
+++ b/backend/internal/modules/chathub/hub.go
@@ -135,6 +135,25 @@ func (h *Hub) NotifyUser(pType string, pID uint64, event *ChatEvent) {
 	}
 }
 
+// NotifyAllAdmins 向所有在线管理员（客服）推送事件。
+// 客服工作台的「未分配 / 全部」视图会展示当前客服并非参与者的会话，
+// 仅靠 NotifyConversation（只推参与者）无法实时刷新，故对所有在线客服广播。
+func (h *Hub) NotifyAllAdmins(event *ChatEvent) {
+	h.mu.RLock()
+	defer h.mu.RUnlock()
+	for key, clients := range h.clients {
+		if key.Type != "admin" {
+			continue
+		}
+		for ch := range clients {
+			select {
+			case ch <- event:
+			default:
+			}
+		}
+	}
+}
+
 // MarshalEvent 将事件序列化为 SSE data 行。
 func MarshalEvent(event *ChatEvent) string {
 	raw, _ := json.Marshal(event)
diff --git a/frontend/src/features/chats/composables/useChatSSE.ts b/frontend/src/features/chats/composables/useChatSSE.ts
index 0f67518..4f65fce 100644
--- a/frontend/src/features/chats/composables/useChatSSE.ts
+++ b/frontend/src/features/chats/composables/useChatSSE.ts
@@ -40,10 +40,12 @@ export function useChatSSE(scope: AuthScope, endpoint: string) {
   function connect() {
     if (stopped || source) return
     const token = getAccessToken(scope)
-    if (!token) return
+    // 用户端通过 query token 鉴权；后台 token 存于 httpOnly cookie，
+    // localStorage 无 token，连接时依赖浏览器自动携带的 cookie，不能因空 token 提前返回。
+    if (scope !== 'admin' && !token) return
 
-    const url = `${endpoint}?token=${encodeURIComponent(token)}`
-    source = new EventSource(url)
+    const url = scope === 'admin' ? endpoint : `${endpoint}?token=${encodeURIComponent(token)}`
+    source = new EventSource(url, { withCredentials: true })
 
     source.addEventListener('connected', () => {
       connected.value = true