diff --git a/emis-biz/src/main/java/com/xdadan/erp/emis/domain/EmisTmsSiteBatchMissStatistics.java b/emis-biz/src/main/java/com/xdadan/erp/emis/domain/EmisTmsSiteBatchMissStatistics.java
index 127d153aa..4c2217fc3 100644
--- a/emis-biz/src/main/java/com/xdadan/erp/emis/domain/EmisTmsSiteBatchMissStatistics.java
+++ b/emis-biz/src/main/java/com/xdadan/erp/emis/domain/EmisTmsSiteBatchMissStatistics.java
@@ -1,11 +1,11 @@
 package com.xdadan.erp.emis.domain;
 
 import com.fasterxml.jackson.annotation.JsonFormat;
+import org.springframework.format.annotation.DateTimeFormat;
 import com.xdadan.erp.common.core.domain.BaseEntity;
 import lombok.Data;
 
 import java.util.Date;
-import java.util.List;
 
 /**
  * 漏组批次统计查询结果DTO
@@ -29,9 +29,13 @@ public class EmisTmsSiteBatchMissStatistics extends BaseEntity {
     /** 票数 */
     private Integer ticketCount;
 
-    /** 多个寄件月份，逗号分隔，例如：2025-06,2025-07 */
-    private String billMonths;
+    /** 开始时间（含） */
+    @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
+    private Date startTime;
 
-    /** 解析后的月份列表（yyyy-MM） */
-    private List<String> billMonthList;
+    /** 结束时间（含） */
+    @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
+    private Date endTime;
 }
diff --git a/emis-biz/src/main/java/com/xdadan/erp/emis/service/impl/EmisTmsSiteBatchMissStatisticsServiceImpl.java b/emis-biz/src/main/java/com/xdadan/erp/emis/service/impl/EmisTmsSiteBatchMissStatisticsServiceImpl.java
index 7c05a9e4a..36236454e 100644
--- a/emis-biz/src/main/java/com/xdadan/erp/emis/service/impl/EmisTmsSiteBatchMissStatisticsServiceImpl.java
+++ b/emis-biz/src/main/java/com/xdadan/erp/emis/service/impl/EmisTmsSiteBatchMissStatisticsServiceImpl.java
@@ -46,7 +46,6 @@ public class EmisTmsSiteBatchMissStatisticsServiceImpl implements IEmisTmsSiteBa
     @Override
     public List<EmisTmsSiteBatchMissStatistics> selectStatisticsList(
             EmisTmsSiteBatchMissStatistics emisTmsSiteBatchMissStatistics) {
-        normalizeBillMonths(emisTmsSiteBatchMissStatistics);
         log.info("查询漏组批次统计列表，startSiteCode: {}, billMonth: {}",
                 emisTmsSiteBatchMissStatistics.getStartSiteCode(), emisTmsSiteBatchMissStatistics.getBillMonth());
 
@@ -62,7 +61,6 @@ public class EmisTmsSiteBatchMissStatisticsServiceImpl implements IEmisTmsSiteBa
     @Override
     public void exportStatisticsData(HttpServletResponse response,
             EmisTmsSiteBatchMissStatistics emisTmsSiteBatchMissStatistics) {
-        normalizeBillMonths(emisTmsSiteBatchMissStatistics);
         try {
             // 设置响应头
             response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
@@ -242,7 +240,6 @@ public class EmisTmsSiteBatchMissStatisticsServiceImpl implements IEmisTmsSiteBa
     @Override
     public void exportDetailDataByMonthStream(HttpServletResponse response,
             EmisTmsSiteBatchMissStatistics emisTmsSiteBatchMissStatistics) {
-        normalizeBillMonths(emisTmsSiteBatchMissStatistics);
         long startTime = System.currentTimeMillis();
         try {
             // 设置响应头
@@ -449,36 +446,4 @@ public class EmisTmsSiteBatchMissStatisticsServiceImpl implements IEmisTmsSiteBa
         }
     }
 
-    /**
-     * 归一化 billMonths 到 billMonthList，支持逗号分隔的多月份（yyyy-MM）。
-     */
-    private void normalizeBillMonths(EmisTmsSiteBatchMissStatistics query) {
-        if (query == null) {
-            return;
-        }
-        if (query.getBillMonthList() != null && !query.getBillMonthList().isEmpty()) {
-            return;
-        }
-        List<String> result = new ArrayList<>();
-        String months = query.getBillMonths();
-        if (months != null && months.trim().length() > 0) {
-            String[] parts = months.split(",");
-            for (String p : parts) {
-                if (p != null) {
-                    String v = p.trim();
-                    if (v.length() > 0) {
-                        result.add(v);
-                    }
-                }
-            }
-        }
-        if (result.isEmpty() && query.getBillMonth() != null) {
-            synchronized (MONTH_FORMAT) {
-                result.add(MONTH_FORMAT.format(query.getBillMonth()));
-            }
-        }
-        if (!result.isEmpty()) {
-            query.setBillMonthList(result);
-        }
-    }
 }
diff --git a/emis-biz/src/main/resources/mapper/EmisTmsSiteBatchMissStatisticsMapper.xml b/emis-biz/src/main/resources/mapper/EmisTmsSiteBatchMissStatisticsMapper.xml
index b5686b998..309172a60 100644
--- a/emis-biz/src/main/resources/mapper/EmisTmsSiteBatchMissStatisticsMapper.xml
+++ b/emis-biz/src/main/resources/mapper/EmisTmsSiteBatchMissStatisticsMapper.xml
@@ -24,13 +24,13 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         <if test="startSiteCode != null and startSiteCode != ''">
             AND bm.start_site_code = #{startSiteCode}
         </if>
-        <if test="billMonthList != null and billMonthList.size() &gt; 0">
-            AND DATE_FORMAT(w.send_date, '%Y-%m') IN
-            <foreach collection="billMonthList" item="bm" open="(" separator="," close=")">
-                #{bm}
-            </foreach>
+        <if test="startTime != null">
+            AND w.send_date <![CDATA[ >= ]]> #{startTime}
         </if>
-        <if test="billMonthList == null or billMonthList.size() == 0">
+        <if test="endTime != null">
+            AND w.send_date <![CDATA[ <= ]]> #{endTime}
+        </if>
+        <if test="startTime == null and endTime == null">
             <if test="billMonth != null">
                 AND DATE_FORMAT(w.send_date, '%Y-%m') = DATE_FORMAT(#{billMonth}, '%Y-%m')
             </if>
@@ -76,13 +76,13 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         <if test="startSiteCode != null and startSiteCode != ''">
             AND m.start_site_code = #{startSiteCode}
         </if>
-        <if test="billMonthList != null and billMonthList.size() &gt; 0">
-            AND DATE_FORMAT(w.send_date, '%Y-%m') IN
-            <foreach collection="billMonthList" item="bm" open="(" separator="," close=")">
-                #{bm}
-            </foreach>
+        <if test="startTime != null">
+            AND w.send_date <![CDATA[ >= ]]> #{startTime}
         </if>
-        <if test="billMonthList == null or billMonthList.size() == 0">
+        <if test="endTime != null">
+            AND w.send_date <![CDATA[ <= ]]> #{endTime}
+        </if>
+        <if test="startTime == null and endTime == null">
             <if test="billMonth != null">
                 AND DATE_FORMAT(w.send_date, '%Y-%m') = DATE_FORMAT(#{billMonth}, '%Y-%m')
             </if>
@@ -128,13 +128,13 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         <if test="query.startSiteCode != null and query.startSiteCode != ''">
             AND m.start_site_code = #{query.startSiteCode}
         </if>
-        <if test="query.billMonthList != null and query.billMonthList.size() &gt; 0">
-            AND DATE_FORMAT(w.send_date, '%Y-%m') IN
-            <foreach collection="query.billMonthList" item="bm" open="(" separator="," close=")">
-                #{bm}
-            </foreach>
+        <if test="query.startTime != null">
+            AND w.send_date <![CDATA[ >= ]]> #{query.startTime}
         </if>
-        <if test="query.billMonthList == null or query.billMonthList.size() == 0">
+        <if test="query.endTime != null">
+            AND w.send_date <![CDATA[ <= ]]> #{query.endTime}
+        </if>
+        <if test="query.startTime == null and query.endTime == null">
             <if test="query.billMonth != null">
                 AND DATE_FORMAT(w.send_date, '%Y-%m') = DATE_FORMAT(#{query.billMonth}, '%Y-%m')
             </if>
@@ -152,13 +152,13 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         <if test="startSiteCode != null and startSiteCode != ''">
             AND m.start_site_code = #{startSiteCode}
         </if>
-        <if test="billMonthList != null and billMonthList.size() &gt; 0">
-            AND DATE_FORMAT(w.send_date, '%Y-%m') IN
-            <foreach collection="billMonthList" item="bm" open="(" separator="," close=")">
-                #{bm}
-            </foreach>
+        <if test="startTime != null">
+            AND w.send_date <![CDATA[ >= ]]> #{startTime}
         </if>
-        <if test="billMonthList == null or billMonthList.size() == 0">
+        <if test="endTime != null">
+            AND w.send_date <![CDATA[ <= ]]> #{endTime}
+        </if>
+        <if test="startTime == null and endTime == null">
             <if test="billMonth != null">
                 AND DATE_FORMAT(w.send_date, '%Y-%m') = DATE_FORMAT(#{billMonth}, '%Y-%m')
             </if>