diff --git a/src/main/java/com/ruoyi/task/service/impl/TaskPlanServiceImpl.java b/src/main/java/com/ruoyi/task/service/impl/TaskPlanServiceImpl.java
index c34c80a..3ae3938 100644
--- a/src/main/java/com/ruoyi/task/service/impl/TaskPlanServiceImpl.java
+++ b/src/main/java/com/ruoyi/task/service/impl/TaskPlanServiceImpl.java
@@ -204,6 +204,17 @@ public class TaskPlanServiceImpl implements ITaskPlanService {
 
     @Override
     public boolean deleteTaskPlan(Long planId) {
+        // 先获取该计划下的所有任务
+        List<Task> tasks = taskDomain.getTaskByPlanId(planId);
+        
+        // 删除所有状态为待执行的任务
+        for (Task task : tasks) {
+            if (task.getStatus() == StatusEnum.PENDING) {
+                taskDomain.deleteTask(task.getId());
+            }
+        }
+        
+        // 最后删除任务计划
         return taskPlanDomain.deleteTaskPlan(planId);
     }
 }