diff --git a/ruoyi-oa/src/main/java/com/ruoyi/oa/domain/vo/OaReportSummaryVo.java b/ruoyi-oa/src/main/java/com/ruoyi/oa/domain/vo/OaReportSummaryVo.java
index ec6c796..87ad3e1 100644
--- a/ruoyi-oa/src/main/java/com/ruoyi/oa/domain/vo/OaReportSummaryVo.java
+++ b/ruoyi-oa/src/main/java/com/ruoyi/oa/domain/vo/OaReportSummaryVo.java
@@ -67,5 +67,7 @@ public class OaReportSummaryVo {
 
     private Long type;
 
+    @ExcelProperty(value = "最近更新时间")
+    private Date lastUpdateTime;
 
 }
diff --git a/ruoyi-oa/src/main/resources/mapper/oa/OaReportSummaryMapper.xml b/ruoyi-oa/src/main/resources/mapper/oa/OaReportSummaryMapper.xml
index c9f668d..d5bd4ce 100644
--- a/ruoyi-oa/src/main/resources/mapper/oa/OaReportSummaryMapper.xml
+++ b/ruoyi-oa/src/main/resources/mapper/oa/OaReportSummaryMapper.xml
@@ -28,9 +28,17 @@
         s.project_id AS projectId,
         s.remark,
         s.type,
-        p.project_name AS projectName
+        p.project_name AS projectName,
+        d.latest_create_time AS lastUpdateTime
         FROM oa_report_summary s
         LEFT JOIN sys_oa_project p ON s.project_id = p.project_id
+        LEFT JOIN (
+        SELECT
+        summary_id,
+        create_time AS latest_create_time,
+        ROW_NUMBER() OVER (PARTITION BY summary_id ORDER BY create_time DESC) AS rn
+        FROM oa_report_detail
+        ) d ON s.summary_id = d.summary_id AND d.rn = 1
         <where>
             <if test="bo.reportTitle != null and bo.reportTitle != ''">
                 AND s.report_title LIKE CONCAT('%', #{bo.reportTitle}, '%')