diff --git a/src/main/java/com/gameplatform/server/service/link/LinkStatusService.java b/src/main/java/com/gameplatform/server/service/link/LinkStatusService.java
index aca876c..291c6bd 100644
--- a/src/main/java/com/gameplatform/server/service/link/LinkStatusService.java
+++ b/src/main/java/com/gameplatform/server/service/link/LinkStatusService.java
@@ -692,6 +692,12 @@ private UserLinkStatusResponse doGetUserLinkStatus(Long linkId, String codeNo) {
                 String selectedDeviceId;
                 
                 if(linkTask.getFirstRegionSelectAt() == null){
+                    if(!linkTask.getStatus().equals("USING")){
+                        LocalDateTime now = LocalDateTime.now();
+                        linkTask.setStatus("USING");
+                        linkTask.setUpdatedAt(now);
+                        linkTaskMapper.updateById(linkTask);
+                    }
                     log.info("首次选区: 开始检查和分配空闲设备");
                     DeviceStatusResponse deviceStatus = scriptClient.checkAvailableDeviceStatus().block();
 
@@ -716,6 +722,12 @@ private UserLinkStatusResponse doGetUserLinkStatus(Long linkId, String codeNo) {
                     
                     log.info("首次选区设备分配成功: 选中设备={}, 任务ID={}", selectedDeviceId, linkTask.getId());
                 }else{
+                    if(!linkTask.getStatus().equals("USING")){
+                        LocalDateTime now = LocalDateTime.now();
+                        linkTask.setStatus("USING");
+                        linkTask.setUpdatedAt(now);
+                        linkTaskMapper.updateById(linkTask);
+                    }
                     log.info("重复选区: 检查首次选区时有效性并复用设备");
                     // 检查首次选区是否已过期
                     LocalDateTime firstSelectTime = linkTask.getFirstRegionSelectAt();
@@ -831,6 +843,8 @@ private UserLinkStatusResponse doGetUserLinkStatus(Long linkId, String codeNo) {
                 }
                 if (linkTask.getFirstRegionSelectAt() == null) {
                     linkTask.setFirstRegionSelectAt(now);
+                    linkTask.setStatus("USING");
+                    linkTask.setUpdatedAt(LocalDateTime.now());
                     try { linkTaskMapper.update(linkTask); } catch (Exception ignore) {}
                 }
                 // Audit and history for USING transition