diff --git a/hzims-service/gglm-big-model/src/main/java/com/hnac/gglm/bigmodel/business/service/impl/VectorDataServiceImpl.java b/hzims-service/gglm-big-model/src/main/java/com/hnac/gglm/bigmodel/business/service/impl/VectorDataServiceImpl.java
index 6e5b1fa..eb82c3f 100644
--- a/hzims-service/gglm-big-model/src/main/java/com/hnac/gglm/bigmodel/business/service/impl/VectorDataServiceImpl.java
+++ b/hzims-service/gglm-big-model/src/main/java/com/hnac/gglm/bigmodel/business/service/impl/VectorDataServiceImpl.java
@@ -96,6 +96,9 @@ public class VectorDataServiceImpl implements VectorDataService {
     @Override
     public List<CanvasInfo> getScadaCanvas() {
         List<CanvasInfo> list = scadaClient.listCanvas().getData();
+        if (null == list || list.isEmpty()) {
+            return new LinkedList<>();
+        }
         List<String> projectIds = list.stream().map(CanvasInfo::getProjectId).collect(Collectors.toList());
         List<ProjectNameVo> nameList = projectClient.getProjectNameList(projectIds).getData();
         if (null == nameList || nameList.isEmpty()) {