diff --git a/safety-eval-adapter/src/main/java/org/qinan/safetyeval/adapter/web/institution/EvalProjectController.java b/safety-eval-adapter/src/main/java/org/qinan/safetyeval/adapter/web/institution/EvalProjectController.java
index 62023e6b..67551d46 100644
--- a/safety-eval-adapter/src/main/java/org/qinan/safetyeval/adapter/web/institution/EvalProjectController.java
+++ b/safety-eval-adapter/src/main/java/org/qinan/safetyeval/adapter/web/institution/EvalProjectController.java
@@ -112,5 +112,14 @@ public class EvalProjectController {
         return evalProjectApi.archiveSupervisionPage(query);
     }
 
+    /**
+     * 项目档案监管统计（在库项目档案数、流程文档数、机构补充文件数，一条SQL完成）
+     */
+    @ApiOperation("项目档案监管统计")
+    @GetMapping("/archive-supervision-stat")
+    public SingleResponse<EvalProjectArchiveSupervisionStatCO> archiveSupervisionStat() {
+        return evalProjectApi.archiveSupervisionStat();
+    }
+
 
 }
diff --git a/safety-eval-app/src/main/java/org/qinan/safetyeval/app/executor/institution/EvalProjectExecutor.java b/safety-eval-app/src/main/java/org/qinan/safetyeval/app/executor/institution/EvalProjectExecutor.java
index 9905ea8a..1f713573 100644
--- a/safety-eval-app/src/main/java/org/qinan/safetyeval/app/executor/institution/EvalProjectExecutor.java
+++ b/safety-eval-app/src/main/java/org/qinan/safetyeval/app/executor/institution/EvalProjectExecutor.java
@@ -362,6 +362,14 @@ public class EvalProjectExecutor implements EvalProjectApi {
         return PageResponse.of(result.getRecords(), result.getTotal());
     }
 
+    /**
+     * 项目档案监管统计：一条SQL统计在库项目档案数、流程文档数、机构补充文件数。
+     */
+    @Override
+    public SingleResponse<EvalProjectArchiveSupervisionStatCO> archiveSupervisionStat() {
+        return SingleResponse.success(evalProjectMapper.selectArchiveSupervisionStat());
+    }
+
     /**
      * 回填分页结果的流程文档/补充文件统计数与评价类型名称。
      */
diff --git a/safety-eval-client/src/main/java/org/qinan/safetyeval/client/api/institution/EvalProjectApi.java b/safety-eval-client/src/main/java/org/qinan/safetyeval/client/api/institution/EvalProjectApi.java
index fd2488d7..a2adc8b2 100644
--- a/safety-eval-client/src/main/java/org/qinan/safetyeval/client/api/institution/EvalProjectApi.java
+++ b/safety-eval-client/src/main/java/org/qinan/safetyeval/client/api/institution/EvalProjectApi.java
@@ -58,4 +58,11 @@ public interface EvalProjectApi {
      * @return 项目档案监管分页数据
      */
     PageResponse<EvalProjectArchiveSupervisionCO> archiveSupervisionPage(EvalProjectArchiveSupervisionPageQuery query);
+
+    /**
+     * 项目档案监管统计（一条SQL统计在库项目档案数、流程文档数、机构补充文件数）
+     *
+     * @return 项目档案监管统计数据
+     */
+    SingleResponse<EvalProjectArchiveSupervisionStatCO> archiveSupervisionStat();
 }
diff --git a/safety-eval-client/src/main/java/org/qinan/safetyeval/client/co/institution/EvalProjectArchiveSupervisionStatCO.java b/safety-eval-client/src/main/java/org/qinan/safetyeval/client/co/institution/EvalProjectArchiveSupervisionStatCO.java
new file mode 100644
index 00000000..b475ceee
--- /dev/null
+++ b/safety-eval-client/src/main/java/org/qinan/safetyeval/client/co/institution/EvalProjectArchiveSupervisionStatCO.java
@@ -0,0 +1,20 @@
+package org.qinan.safetyeval.client.co.institution;
+
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+
+/**
+ * 项目档案监管统计
+ */
+@Data
+public class EvalProjectArchiveSupervisionStatCO {
+
+    @ApiModelProperty("在库项目档案数（有档案文件的项目数，按项目ID去重）")
+    private Integer inLibraryArchiveCount;
+
+    @ApiModelProperty("流程文档数（record_source=auto_process_record）")
+    private Integer processFileCount;
+
+    @ApiModelProperty("机构补充文件数（record_source=upload_additional_files）")
+    private Integer additionalFileCount;
+}
diff --git a/safety-eval-infrastructure/src/main/java/org/qinan/safetyeval/infrastructure/mapper/EvalProjectMapper.java b/safety-eval-infrastructure/src/main/java/org/qinan/safetyeval/infrastructure/mapper/EvalProjectMapper.java
index 6b5060fa..73f070bb 100644
--- a/safety-eval-infrastructure/src/main/java/org/qinan/safetyeval/infrastructure/mapper/EvalProjectMapper.java
+++ b/safety-eval-infrastructure/src/main/java/org/qinan/safetyeval/infrastructure/mapper/EvalProjectMapper.java
@@ -7,6 +7,7 @@ import org.apache.ibatis.annotations.Mapper;
 import org.apache.ibatis.annotations.Param;
 import org.apache.ibatis.annotations.Select;
 import org.qinan.safetyeval.client.co.institution.EvalProjectArchiveSupervisionCO;
+import org.qinan.safetyeval.client.co.institution.EvalProjectArchiveSupervisionStatCO;
 import org.qinan.safetyeval.client.co.institution.EvalProjectProgressCO;
 import org.qinan.safetyeval.client.co.institution.RiskWarningCO;
 import org.qinan.safetyeval.client.co.regulator.RegulatorEvalProjectMonitorPageCO;
@@ -92,5 +93,10 @@ public interface EvalProjectMapper extends BaseMapper<EvalProjectDO> {
      */
     List<EvalProjectArchiveSupervisionCO> selectArchiveFileStatByProjectIds(@Param("projectIds") List<Long> projectIds);
 
+    /**
+     * 项目档案监管统计（一条SQL条件聚合：在库项目档案数/流程文档数/机构补充文件数）
+     */
+    EvalProjectArchiveSupervisionStatCO selectArchiveSupervisionStat();
+
     List<Long> getByPersonnelId(@Param("currentUserId") Long currentUserId);
 }
diff --git a/safety-eval-infrastructure/src/main/resources/mapper/EvalProjectMapper.xml b/safety-eval-infrastructure/src/main/resources/mapper/EvalProjectMapper.xml
index b414cc5e..91d82081 100644
--- a/safety-eval-infrastructure/src/main/resources/mapper/EvalProjectMapper.xml
+++ b/safety-eval-infrastructure/src/main/resources/mapper/EvalProjectMapper.xml
@@ -367,4 +367,15 @@
         </foreach>
         GROUP BY f.project_id
     </select>
+
+    <!-- 项目档案监管统计（一条SQL条件聚合：在库项目档案=按项目ID去重，流程文档/机构补充文件按record_source分列统计） -->
+    <select id="selectArchiveSupervisionStat"
+            resultType="org.qinan.safetyeval.client.co.institution.EvalProjectArchiveSupervisionStatCO">
+        SELECT
+        COUNT(DISTINCT f.project_id) AS in_library_archive_count,
+        IFNULL(SUM(CASE WHEN f.record_source = 'auto_process_record' THEN 1 ELSE 0 END), 0) AS process_file_count,
+        IFNULL(SUM(CASE WHEN f.record_source = 'upload_additional_files' THEN 1 ELSE 0 END), 0) AS additional_file_count
+        FROM eval_project_archive_file f
+        WHERE f.delete_enum = 'false'
+    </select>
 </mapper>