diff --git a/src/backend/job-manage/service-job-manage/src/main/java/com/tencent/bk/job/manage/dao/TaskVariableDAO.java b/src/backend/job-manage/service-job-manage/src/main/java/com/tencent/bk/job/manage/dao/TaskVariableDAO.java
index 03c72ed2df..8fc79aa8c9 100644
--- a/src/backend/job-manage/service-job-manage/src/main/java/com/tencent/bk/job/manage/dao/TaskVariableDAO.java
+++ b/src/backend/job-manage/service-job-manage/src/main/java/com/tencent/bk/job/manage/dao/TaskVariableDAO.java
@@ -92,6 +92,14 @@ public interface TaskVariableDAO {
      */
     boolean deleteVariableById(long parentId, long id);
 
+    /**
+     * 根据 父资源ID 删除变量信息
+     *
+     * @param parentId 父资源ID
+     * @return 是否删除成功
+     */
+    int deleteVariableByParentId(long parentId);
+
     /**
      * 保留变量 ID 批量插入变量信息
      *
diff --git a/src/backend/job-manage/service-job-manage/src/main/java/com/tencent/bk/job/manage/dao/plan/impl/TaskPlanVariableDAOImpl.java b/src/backend/job-manage/service-job-manage/src/main/java/com/tencent/bk/job/manage/dao/plan/impl/TaskPlanVariableDAOImpl.java
index 56267ce0af..6465292c85 100644
--- a/src/backend/job-manage/service-job-manage/src/main/java/com/tencent/bk/job/manage/dao/plan/impl/TaskPlanVariableDAOImpl.java
+++ b/src/backend/job-manage/service-job-manage/src/main/java/com/tencent/bk/job/manage/dao/plan/impl/TaskPlanVariableDAOImpl.java
@@ -194,6 +194,13 @@ public boolean deleteVariableById(long parentId, long id) {
         return 1 == context.deleteFrom(TABLE).where(conditions).limit(1).execute();
     }
 
+    @Override
+    public int deleteVariableByParentId(long parentId) {
+        List<Condition> conditions = new ArrayList<>();
+        conditions.add(TABLE.PLAN_ID.eq(ULong.valueOf(parentId)));
+        return context.deleteFrom(TABLE).where(conditions).execute();
+    }
+
     @Override
     public boolean batchInsertVariableWithId(List<TaskVariableDTO> variableList) {
         return false;
diff --git a/src/backend/job-manage/service-job-manage/src/main/java/com/tencent/bk/job/manage/dao/template/impl/TaskTemplateVariableDAOImpl.java b/src/backend/job-manage/service-job-manage/src/main/java/com/tencent/bk/job/manage/dao/template/impl/TaskTemplateVariableDAOImpl.java
index 02d3a07eaa..ad502719bf 100644
--- a/src/backend/job-manage/service-job-manage/src/main/java/com/tencent/bk/job/manage/dao/template/impl/TaskTemplateVariableDAOImpl.java
+++ b/src/backend/job-manage/service-job-manage/src/main/java/com/tencent/bk/job/manage/dao/template/impl/TaskTemplateVariableDAOImpl.java
@@ -219,6 +219,13 @@ public boolean deleteVariableById(long parentId, long id) {
         return 1 == context.deleteFrom(TABLE).where(conditions).limit(1).execute();
     }
 
+    @Override
+    public int deleteVariableByParentId(long parentId) {
+        List<Condition> conditions = new ArrayList<>();
+        conditions.add(TABLE.TEMPLATE_ID.eq(ULong.valueOf(parentId)));
+        return context.deleteFrom(TABLE).where(conditions).execute();
+    }
+
     @Override
     public boolean batchInsertVariableWithId(List<TaskVariableDTO> variableList) {
         InsertValuesStep8<TaskTemplateVariableRecord, ULong, ULong, String, UByte, String, String, UByte,
diff --git a/src/backend/job-manage/service-job-manage/src/main/java/com/tencent/bk/job/manage/service/AbstractTaskVariableService.java b/src/backend/job-manage/service-job-manage/src/main/java/com/tencent/bk/job/manage/service/AbstractTaskVariableService.java
index 6522632269..a32f7e0161 100644
--- a/src/backend/job-manage/service-job-manage/src/main/java/com/tencent/bk/job/manage/service/AbstractTaskVariableService.java
+++ b/src/backend/job-manage/service-job-manage/src/main/java/com/tencent/bk/job/manage/service/AbstractTaskVariableService.java
@@ -87,6 +87,16 @@ public boolean deleteVariableById(Long parentId, Long id) {
         return taskVariableDAO.deleteVariableById(parentId, id);
     }
 
+    /**
+     * 根据 父资源ID 删除变量
+     *
+     * @param parentId 父资源 ID
+     * @return 删除的数据条数
+     */
+    public int deleteVariableByParentId(Long parentId) {
+        return taskVariableDAO.deleteVariableByParentId(parentId);
+    }
+
     /**
      * 根据变量 ID 拉取变量信息
      *
diff --git a/src/backend/job-manage/service-job-manage/src/main/java/com/tencent/bk/job/manage/service/plan/impl/TaskPlanServiceImpl.java b/src/backend/job-manage/service-job-manage/src/main/java/com/tencent/bk/job/manage/service/plan/impl/TaskPlanServiceImpl.java
index 5808f9eca7..c4c2b44abd 100644
--- a/src/backend/job-manage/service-job-manage/src/main/java/com/tencent/bk/job/manage/service/plan/impl/TaskPlanServiceImpl.java
+++ b/src/backend/job-manage/service-job-manage/src/main/java/com/tencent/bk/job/manage/service/plan/impl/TaskPlanServiceImpl.java
@@ -80,8 +80,9 @@ public class TaskPlanServiceImpl implements TaskPlanService {
     private final TaskPlanDAO taskPlanDAO;
     private final MessageI18nService i18nService;
     private final CronJobService cronJobService;
-    private AbstractTaskStepService taskPlanStepService;
-    private AbstractTaskVariableService taskPlanVariableService;
+    private final AbstractTaskStepService taskPlanStepService;
+    private final AbstractTaskVariableService taskTemplateVariableService;
+    private final AbstractTaskVariableService taskPlanVariableService;
 
     @Autowired
     private TaskTemplateService taskTemplateService;
@@ -92,11 +93,13 @@ public class TaskPlanServiceImpl implements TaskPlanService {
     public TaskPlanServiceImpl(
         TaskPlanDAO taskPlanDAO,
         @Qualifier("TaskPlanStepServiceImpl") AbstractTaskStepService taskPlanStepService,
+        @Qualifier("TaskTemplateVariableServiceImpl") AbstractTaskVariableService taskTemplateVariableService,
         @Qualifier("TaskPlanVariableServiceImpl") AbstractTaskVariableService taskPlanVariableService,
         MessageI18nService i18nService, CronJobService cronJobService
     ) {
         this.taskPlanDAO = taskPlanDAO;
         this.taskPlanStepService = taskPlanStepService;
+        this.taskTemplateVariableService = taskTemplateVariableService;
         this.taskPlanVariableService = taskPlanVariableService;
         this.i18nService = i18nService;
         this.cronJobService = cronJobService;
@@ -296,9 +299,22 @@ public TaskPlanInfoDTO getDebugTaskPlan(String username, Long appId, Long templa
         }
         if (taskPlan != null) {
             if (!taskTemplateInfo.getVersion().equals(taskPlan.getVersion())) {
+                // 作业模板有更新，需要同步到调试执行方案（不含变量）
                 taskPlanService.sync(appId, templateId, taskPlan.getId(), taskTemplateInfo.getVersion());
                 taskPlan = taskPlanDAO.getDebugTaskPlan(appId, templateId);
             }
+            List<TaskVariableDTO> templateVariableList =
+                taskTemplateVariableService.listVariablesByParentId(taskPlan.getTemplateId());
+            // 始终使用模板最新变量作为执行方案变量并更新到DB
+            setPlanIdForVariables(taskPlan.getId(), templateVariableList);
+            int deletedVarNum = taskPlanVariableService.deleteVariableByParentId(taskPlan.getId());
+            List<Long> insertedVarIds = taskPlanVariableService.batchInsertVariable(templateVariableList);
+            log.debug(
+                "sync template variable to debug plan:{} taskPlan variable deleted, {} variable inserted:{}",
+                deletedVarNum,
+                insertedVarIds.size(),
+                insertedVarIds
+            );
             taskPlan.setStepList(taskPlanStepService.listStepsByParentId(taskPlan.getId()));
             taskPlan.setVariableList(taskPlanVariableService.listVariablesByParentId(taskPlan.getId()));
             return taskPlan;
@@ -330,6 +346,13 @@ public TaskPlanInfoDTO getDebugTaskPlan(String username, Long appId, Long templa
         return taskPlan;
     }
 
+    private void setPlanIdForVariables(Long planId, List<TaskVariableDTO> variableList) {
+        if (CollectionUtils.isEmpty(variableList)) {
+            return;
+        }
+        variableList.forEach(variable -> variable.setPlanId(planId));
+    }
+
     @Override
     public List<TaskPlanInfoDTO> listPlanBasicInfoByIds(Long appId, List<Long> planIdList) {
         List<TaskPlanInfoDTO> taskPlanInfoList = taskPlanDAO.listTaskPlanByIds(