diff --git a/web/src/main/java/com/ibeetl/jlw/service/TeacherOpenCourseKnowledgePointRelationService.java b/web/src/main/java/com/ibeetl/jlw/service/TeacherOpenCourseKnowledgePointRelationService.java
index aa69029f..d7928d3c 100644
--- a/web/src/main/java/com/ibeetl/jlw/service/TeacherOpenCourseKnowledgePointRelationService.java
+++ b/web/src/main/java/com/ibeetl/jlw/service/TeacherOpenCourseKnowledgePointRelationService.java
@@ -13,6 +13,7 @@ import com.ibeetl.jlw.entity.TeacherOpenCourseHandsOnSimulationTasksAssessment;
 import com.ibeetl.jlw.entity.TeacherOpenCourseKnowledgePointRelation;
 import com.ibeetl.jlw.web.query.TeacherOpenCourseKnowledgePointRelationQuery;
 import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.collections4.CollectionUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.beetl.sql.core.SqlId;
 import org.beetl.sql.core.engine.PageQuery;
@@ -110,7 +111,9 @@ public class TeacherOpenCourseKnowledgePointRelationService extends CoreBaseServ
         sqlManager.lambdaQuery(TeacherOpenCourseKnowledgePointRelation.class)
                 .andEq(TeacherOpenCourseKnowledgePointRelation::getBussinessId, teacherOpenCourseKnowledgePointRelationQuery.getBussinessId())
                 .delete();
-        teacherOpenCourseKnowledgePointRelationDao.insertBatch(teacherOpenCourseKnowledgePointRelations);
+        if (CollectionUtils.isNotEmpty(teacherOpenCourseKnowledgePointRelations)) {
+            teacherOpenCourseKnowledgePointRelationDao.insertBatch(teacherOpenCourseKnowledgePointRelations);
+        }
         JsonResult jsonResult = new JsonResult();
         jsonResult.setCode(JsonReturnCode.SUCCESS.getCode());
         jsonResult.setMsg(msg);