diff --git a/src/main/java/com/ai/da/service/impl/GenerateServiceImpl.java b/src/main/java/com/ai/da/service/impl/GenerateServiceImpl.java
index 60ced28e..d6f99877 100644
--- a/src/main/java/com/ai/da/service/impl/GenerateServiceImpl.java
+++ b/src/main/java/com/ai/da/service/impl/GenerateServiceImpl.java
@@ -2024,7 +2024,8 @@ public class GenerateServiceImpl extends ServiceImpl<GenerateMapper, Generate> i
     private String resolveModelType(String taskId){
         // 判断当前task来自哪个模型
         Generate generate = selectByUniqueId(taskId);
-        if (!StringUtil.isNullOrEmpty(generate.getModelName()) &&
+        if (Objects.nonNull(generate) &&
+                !StringUtil.isNullOrEmpty(generate.getModelName()) &&
                 (generate.getModelName().equals("wx")
                         || generate.getModelName().equals("freepik")
                         || generate.getModelName().equals("flux") )){