diff --git a/src/main/java/com/example/building/service/impl/OrderServiceImpl.java b/src/main/java/com/example/building/service/impl/OrderServiceImpl.java
index 32b26ea..a71601a 100644
--- a/src/main/java/com/example/building/service/impl/OrderServiceImpl.java
+++ b/src/main/java/com/example/building/service/impl/OrderServiceImpl.java
@@ -253,11 +253,13 @@ public class OrderServiceImpl implements OrderService {
     public Map<String, Object> getStatistics(String startDate, String endDate) {
         LambdaQueryWrapper<Order> wrapper = new LambdaQueryWrapper<>();
         wrapper.eq(Order::getStatus, 1);
-        if (startDate != null) {
-            wrapper.ge(Order::getCreatedAt, startDate);
+        if (startDate != null && !startDate.isEmpty()) {
+            LocalDateTime start = LocalDate.parse(startDate, DateTimeFormatter.ISO_LOCAL_DATE).atStartOfDay();
+            wrapper.ge(Order::getCreatedAt, start);
         }
-        if (endDate != null) {
-            wrapper.le(Order::getCreatedAt, endDate);
+        if (endDate != null && !endDate.isEmpty()) {
+            LocalDateTime end = LocalDate.parse(endDate, DateTimeFormatter.ISO_LOCAL_DATE).atTime(23, 59, 59);
+            wrapper.le(Order::getCreatedAt, end);
         }
 
         List<Order> orders = orderMapper.selectList(wrapper);