diff --git a/app/schemas.py b/app/schemas.py
index d93de8a..4710bff 100644
--- a/app/schemas.py
+++ b/app/schemas.py
@@ -124,6 +124,7 @@ class EdgeAlarmReport(BaseModel):
     snapshot_url: Optional[str] = Field(None, max_length=512, description="截图 COS object_key")
     algorithm_code: Optional[str] = Field(None, max_length=64, description="算法编码")
     confidence_score: Optional[float] = Field(None, ge=0, le=1, description="置信度 0-1")
+    area_id: Optional[int] = Field(None, description="区域ID")
     ext_data: Optional[Dict[str, Any]] = Field(None, description="扩展数据 (bbox/target_class 等)")
 
 
diff --git a/app/services/alarm_event_service.py b/app/services/alarm_event_service.py
index ca70f9c..5c2a0c8 100644
--- a/app/services/alarm_event_service.py
+++ b/app/services/alarm_event_service.py
@@ -240,7 +240,7 @@ class AlarmEventService:
                 handle_status="UNHANDLED",
                 snapshot_url=data.get("snapshot_url"),
                 edge_node_id=ext_data.get("edge_node_id"),
-                area_id=ext_data.get("area_id"),
+                area_id=data.get("area_id") or ext_data.get("area_id"),
             )
 
             db.add(alarm)