diff --git a/ruoyi-modules/guoyan-platform/src/main/java/org/dromara/platform/service/impl/WorkOrderInfoServiceImpl.java b/ruoyi-modules/guoyan-platform/src/main/java/org/dromara/platform/service/impl/WorkOrderInfoServiceImpl.java
index b086874..3fd374c 100644
--- a/ruoyi-modules/guoyan-platform/src/main/java/org/dromara/platform/service/impl/WorkOrderInfoServiceImpl.java
+++ b/ruoyi-modules/guoyan-platform/src/main/java/org/dromara/platform/service/impl/WorkOrderInfoServiceImpl.java
@@ -1136,6 +1136,8 @@ public class WorkOrderInfoServiceImpl implements IWorkOrderInfoService {
 
     @Override
     public void delayOrder(WorkOrderInfoBo bo) {
+        checkDelayTime(bo);
+
         // 延期说明
         String delayDescription = bo.getDelayDescription();
         Long responseTime = bo.getResponseTime();
@@ -1206,6 +1208,26 @@ public class WorkOrderInfoServiceImpl implements IWorkOrderInfoService {
 
     }
 
+    private void checkDelayTime(WorkOrderInfoBo bo) {
+        // 获取延期时间
+        Date delayTime = bo.getDelayTime();
+
+        // 判空处理
+        if (delayTime == null) {
+            throw new ServiceException("延期时间不能为空");
+        }
+
+        // 使用系统默认时区进行比较（或根据业务需要换成 ZoneId.of("UTC")）
+        LocalDateTime now = LocalDateTime.now();
+        LocalDateTime delayDateTime = delayTime.toInstant()
+            .atZone(ZoneId.systemDefault())
+            .toLocalDateTime();
+
+        if (now.isAfter(delayDateTime)) {
+            throw new ServiceException("延期时间不能早于当前时间");
+        }
+    }
+
     @Override
     public void delaySubmit(WorkOrderDelayBo bo) {
         String workOrderId = bo.getId();
@@ -1586,8 +1608,17 @@ public class WorkOrderInfoServiceImpl implements IWorkOrderInfoService {
             reviewInfoQueryWrapper.last("LIMIT 1");
             WorkReviewInfo lastReviewInfo = workReviewInfoMapper.selectOne(reviewInfoQueryWrapper);
             if (lastReviewInfo != null){
-                record.setOtherCost(Double.valueOf(lastReviewInfo.getOtherCost()));
-                record.setOtherCostReason(lastReviewInfo.getOtherCostReason());
+                if (lastReviewInfo.getOtherCost() != null) {
+                    record.setOtherCost(Double.valueOf(lastReviewInfo.getOtherCost()));
+                } else {
+                    record.setOtherCost(0.0); // 或者 0.0，根据业务需求决定默认值
+                }
+
+                if (lastReviewInfo.getOtherCostReason() != null) {
+                    record.setOtherCostReason(lastReviewInfo.getOtherCostReason());
+                } else {
+                    record.setOtherCostReason("无"); // 或者 ""
+                }
             }
 
             // 6.工单审核中的初审建议