diff --git a/src/api/sse_routes.py b/src/api/sse_routes.py
index 75486ef..55e03a4 100644
--- a/src/api/sse_routes.py
+++ b/src/api/sse_routes.py
@@ -1,17 +1,55 @@
-"""SSE 推送路由（占位，F17 完善）"""
+"""SSE 推送路由"""
 
 from __future__ import annotations
 
-from fastapi import APIRouter, Request
+import asyncio
+import json
+from typing import Optional
+
+from fastapi import APIRouter, Query, Request
 from fastapi.responses import StreamingResponse
 
+from src.daemon.sse import SSEBroker
+
 router = APIRouter(prefix="/api/events", tags=["sse"])
 
+# 全局 broker 实例（由 main.py 注入）
+_broker: Optional[SSEBroker] = None
+
+
+def get_broker() -> SSEBroker:
+    global _broker
+    if _broker is None:
+        _broker = SSEBroker()
+    return _broker
+
+
+def set_broker(broker: SSEBroker) -> None:
+    global _broker
+    _broker = broker
+
 
 @router.get("")
-async def event_stream(request: Request):
-    """SSE 端点（占位，F17 实现真实推送）"""
+async def event_stream(
+    request: Request,
+    project: Optional[str] = Query(None, description="Filter by project ID"),
+):
+    """SSE 端点 — 实时推送黑板事件"""
+    broker = get_broker()
+    client_id, queue = broker.subscribe()
+
     async def generate():
-        yield 'data: {"type":"connected"}\n\n'
+        try:
+            while True:
+                if await request.is_disconnected():
+                    break
+                try:
+                    event = await asyncio.wait_for(queue.get(), timeout=30.0)
+                    yield event.to_sse()
+                except asyncio.TimeoutError:
+                    # Heartbeat
+                    yield ": heartbeat\n\n"
+        finally:
+            broker.unsubscribe(client_id)
 
     return StreamingResponse(generate(), media_type="text/event-stream")