diff --git a/gateway/scripts/auto_heal.py b/gateway/scripts/auto_heal.py
index c4860e4..893b1db 100644
--- a/gateway/scripts/auto_heal.py
+++ b/gateway/scripts/auto_heal.py
@@ -146,7 +146,9 @@ def diagnose_and_heal(entry, actual_status):
     返回动作描述字符串，None 表示无操作。
     """
     name = entry["name"]
-    key = entry.get("key", "")
+    raw_key = entry.get("key", "")
+    # 从复合 key（如 "agent-002:hermes_gateway"）提取服务名用于查表
+    service_key = raw_key.split(":")[-1] if ":" in raw_key else raw_key
     host = entry.get("host", "127.0.0.1")
     check = entry.get("check", "")
     expected = entry.get("expected", "")
@@ -166,7 +168,7 @@ def diagnose_and_heal(entry, actual_status):
     # ── 本机端口不通 → 重启服务 ──
     if check == "tcp" and port and actual != "running":
         # 尝试匹配 systemd 单元
-        unit = SERVICE_UNIT_MAP.get(key)
+        unit = SERVICE_UNIT_MAP.get(service_key)
         if isinstance(unit, dict):
             # 需要从 name 中提取标识（"mohe", "zhiwei" 等）
             for ident, u in unit.items():
@@ -180,8 +182,7 @@ def diagnose_and_heal(entry, actual_status):
         elif isinstance(unit, str):
             ok = systemctl_restart(unit)
             return f"restart systemd {unit}: {'OK' if ok else 'FAIL'}"
-        # Docker 容器
-        container = DOCKER_MAP.get(key)
+        container = DOCKER_MAP.get(service_key)
         if container:
             ok = docker_restart(container)
             return f"restart docker {container}: {'OK' if ok else 'FAIL'}"
@@ -199,7 +200,7 @@ def diagnose_and_heal(entry, actual_status):
 
     # ── health_url 不通 → 重启对应服务 ──
     if check == "health_url" and actual != "running":
-        container = DOCKER_MAP.get(key)
+        container = DOCKER_MAP.get(service_key)
         if container:
             ok = docker_restart(container)
             return f"restart docker {container}: {'OK' if ok else 'FAIL'}"