diff --git a/src/api/blackboard_routes.py b/src/api/blackboard_routes.py
index d3856f4..4bb25d7 100644
--- a/src/api/blackboard_routes.py
+++ b/src/api/blackboard_routes.py
@@ -90,9 +90,24 @@ async def claim_task(project_id: str, task_id: str, body: Dict[str, Any]):
 @router.post("/tasks/{task_id}/status")
 async def update_status(project_id: str, task_id: str, body: Dict[str, Any]):
     bb = _bb(project_id)
+    old_task = bb.get_task(task_id)
     if not bb.update_task_status(task_id, body["status"],
                                   agent=body.get("agent")):
         raise HTTPException(409, f"Invalid transition to {body['status']}")
+    # SSE 推送
+    try:
+        from src.api.sse_routes import get_broker
+        broker = get_broker()
+        broker.publish({
+            "type": "task_updated",
+            "project_id": project_id,
+            "task_id": task_id,
+            "old_status": old_task.status if old_task else None,
+            "new_status": body["status"],
+            "agent": body.get("agent"),
+        }, event_type="task_updated")
+    except Exception:
+        pass  # SSE 是可选的，不影响主流程
     return {"ok": True}