diff --git a/src/main/java/com/zhgd/xmgl/modules/safetyhat/mapper/xml/SafetyHatDataMapper.xml b/src/main/java/com/zhgd/xmgl/modules/safetyhat/mapper/xml/SafetyHatDataMapper.xml
index 22bd09ce7..8685040c9 100644
--- a/src/main/java/com/zhgd/xmgl/modules/safetyhat/mapper/xml/SafetyHatDataMapper.xml
+++ b/src/main/java/com/zhgd/xmgl/modules/safetyhat/mapper/xml/SafetyHatDataMapper.xml
@@ -55,7 +55,7 @@
     <select id="countWorkerNumByRegion" resultType="com.zhgd.xmgl.modules.safetyhat.entity.vo.WorkerNumAndRegionName">
         select
         qr.region_name,
-        count(*) as workerNum,
+        count(DISTINCT shd.worker_info_id) as workerNum,
         date_format(shd.upload_time,'%Y-%m-%d') AS date
         from quality_region qr
         join safety_hat_fence shf on shf.quality_region_id = qr.id