diff --git a/laws-modules/src/main/java/com/jero/modules/laws/common/service/impl/LawsCommonServiceImpl.java b/laws-modules/src/main/java/com/jero/modules/laws/common/service/impl/LawsCommonServiceImpl.java
index 7b46bdb6..d87281d7 100644
--- a/laws-modules/src/main/java/com/jero/modules/laws/common/service/impl/LawsCommonServiceImpl.java
+++ b/laws-modules/src/main/java/com/jero/modules/laws/common/service/impl/LawsCommonServiceImpl.java
@@ -1816,6 +1816,11 @@ public class LawsCommonServiceImpl implements ILawsCommonService {
         List<String> valueList = Arrays.asList(value.split(","))
                 .stream().distinct().collect(Collectors.toList());
 
+        if (valueList.size() == 1 && valueList.get(0).isEmpty()) {
+            // 如果只有一个日期值，则复制成两个，用于查询和排序
+            return "";
+        }
+
         if (valueList.size() == 1) {
             // 如果只有一个日期值，则复制成两个，用于查询和排序
             return value + "," + value;