diff --git a/src/main/java/org/springblade/modules/business/contraller/WorkBenchesController.java b/src/main/java/org/springblade/modules/business/contraller/WorkBenchesController.java
index 4d1ccb8..6f48f31 100644
--- a/src/main/java/org/springblade/modules/business/contraller/WorkBenchesController.java
+++ b/src/main/java/org/springblade/modules/business/contraller/WorkBenchesController.java
@@ -1,5 +1,6 @@
 package org.springblade.modules.business.contraller;
 
+import com.baomidou.mybatisplus.core.toolkit.StringUtils;
 import com.baomidou.mybatisplus.core.toolkit.Wrappers;
 import lombok.AllArgsConstructor;
 import org.springblade.core.boot.ctrl.BladeController;
@@ -108,8 +109,8 @@ public class WorkBenchesController extends BladeController {
         xData.add("报送维修");
         xData.add("巡检维修");
         map.put("xData", xData);
-        List<WorkOrder> workOrders = workOrderService.list(Wrappers.lambdaQuery(WorkOrder.class).between(WorkOrder::getCreateTime, format.parse(startTime), format.parse(endTime)));
-        List<MaintenanceTask> tasks = maintenanceTaskService.list(Wrappers.lambdaQuery(MaintenanceTask.class).between(MaintenanceTask::getCreateTime, format.parse(startTime), format.parse(endTime)));
+        List<WorkOrder> workOrders = workOrderService.list(Wrappers.lambdaQuery(WorkOrder.class).between(StringUtils.isNotBlank(startTime) && StringUtils.isNotBlank(endTime), WorkOrder::getCreateTime, format.parse(startTime), format.parse(endTime)));
+        List<MaintenanceTask> tasks = maintenanceTaskService.list(Wrappers.lambdaQuery(MaintenanceTask.class).between(StringUtils.isNotBlank(startTime) && StringUtils.isNotBlank(endTime), MaintenanceTask::getCreateTime, format.parse(startTime), format.parse(endTime)));
         List<Integer> total = new ArrayList<>();
         total.add(workOrders.size());
         total.add(tasks.size());