diff --git a/src/views/publish/examRule/draft/rule.vue b/src/views/publish/examRule/draft/rule.vue
index da1790255..4f21a2c1c 100644
--- a/src/views/publish/examRule/draft/rule.vue
+++ b/src/views/publish/examRule/draft/rule.vue
@@ -147,7 +147,7 @@ export default {
                 topicNum: formData.topicNum,
                 tags: [formData.tags],
                 subTypeParam: {
-                    client: formData.trainingClient
+                    client: formData.trainingClient || null
                 }
             };
             if (formData.subtype === 5 && formData.sceneInfo && formData.sceneInfo.length) {