diff --git a/src/main/java/com/genersoft/iot/vmp/aiot/service/impl/AiScreenshotServiceImpl.java b/src/main/java/com/genersoft/iot/vmp/aiot/service/impl/AiScreenshotServiceImpl.java
index c7199011d..f8f7af61f 100644
--- a/src/main/java/com/genersoft/iot/vmp/aiot/service/impl/AiScreenshotServiceImpl.java
+++ b/src/main/java/com/genersoft/iot/vmp/aiot/service/impl/AiScreenshotServiceImpl.java
@@ -131,9 +131,10 @@ public class AiScreenshotServiceImpl implements IAiScreenshotService {
             if (rtspUrl != null && !rtspUrl.isEmpty()) {
                 fields.put("rtsp_url", rtspUrl);
             }
-            // 多 Edge 设备隔离：带上绑定的 edge_device_id
-            String edgeDeviceId = proxy.getEdgeDeviceId();
-            if (edgeDeviceId != null && !edgeDeviceId.isEmpty()) {
+            // 多 Edge 设备隔离：优先用 ROI 表的 device_id，没有则用 stream_proxy 的 edge_device_id
+            if (!fields.containsKey("device_id")) {
+                String edgeDeviceId = proxy.getEdgeDeviceId();
+                if (edgeDeviceId != null && !edgeDeviceId.isEmpty()) {
                 fields.put("device_id", edgeDeviceId);
             }
         }