diff --git a/src/main/java/com/sqx/modules/taskCenter/controller/TaskCenterRewardController.java b/src/main/java/com/sqx/modules/taskCenter/controller/TaskCenterRewardController.java
index 90bd8aac..d5258c93 100644
--- a/src/main/java/com/sqx/modules/taskCenter/controller/TaskCenterRewardController.java
+++ b/src/main/java/com/sqx/modules/taskCenter/controller/TaskCenterRewardController.java
@@ -30,6 +30,7 @@ public class TaskCenterRewardController {
     @ApiOperation("添加任务奖励")
     public Result insertTaskCenterReward(@RequestBody TaskCenterReward taskCenterReward) {
         taskCenterReward.setCreateTime(DateUtils.format(new Date()));
+        taskCenterReward.setSurplusNumber(taskCenterReward.getTotalNumber());
         taskCenterRewardService.save(taskCenterReward);
         return Result.success();
     }
@@ -43,6 +44,15 @@ public class TaskCenterRewardController {
     @PostMapping("/updateTaskCenterReward")
     @ApiOperation("修改任务奖励")
     public Result updateTaskCenterReward(@RequestBody TaskCenterReward taskCenterReward) {
+        TaskCenterReward reward = taskCenterRewardService.getById(taskCenterReward.getId());
+        if (taskCenterReward.getTotalNumber() != null && reward.getTotalNumber() != null && !taskCenterReward.getTotalNumber().equals(reward.getTotalNumber())) {
+            Integer surplusNumber = taskCenterReward.getTotalNumber() - reward.getTotalNumber();
+            if (surplusNumber > 0) {
+                taskCenterReward.setSurplusNumber(taskCenterReward.getSurplusNumber() == null ? surplusNumber : taskCenterReward.getSurplusNumber() + surplusNumber);
+            } else {
+                taskCenterReward.setSurplusNumber(taskCenterReward.getTotalNumber());
+            }
+        }
         taskCenterReward.setUpdateTime(DateUtils.format(new Date()));
         taskCenterRewardService.updateById(taskCenterReward);
         return Result.success();
@@ -57,7 +67,7 @@ public class TaskCenterRewardController {
 
     @GetMapping("/selectTaskCenterReward")
     @ApiOperation("查询任务奖励")
-    public Result selectTaskCenterReward(Integer page, Integer limit,TaskCenterReward taskCenterReward) {
+    public Result selectTaskCenterReward(Integer page, Integer limit, TaskCenterReward taskCenterReward) {
         return Result.success().put("data", taskCenterRewardService.page(new Page<>(page, limit), new QueryWrapper<>(taskCenterReward).orderByDesc("id")));
     }
 }