diff --git a/src/main/java/com/gameplatform/server/device/DeviceStats.java b/src/main/java/com/gameplatform/server/device/DeviceStats.java
index 045a752..08ef9f2 100644
--- a/src/main/java/com/gameplatform/server/device/DeviceStats.java
+++ b/src/main/java/com/gameplatform/server/device/DeviceStats.java
@@ -3,6 +3,8 @@ package com.gameplatform.server.device;
 import com.gameplatform.server.model.dto.device.DeviceStatusResponse;
 import com.gameplatform.server.model.entity.agent.LinkTask;
 import com.gameplatform.server.model.entity.history.DeviceStatusTransition;
+import com.gameplatform.server.mapper.history.LinkTaskStatusHistoryMapper;
+import com.gameplatform.server.model.entity.history.LinkTaskStatusHistory;
 import com.gameplatform.server.service.cooldown.MemoryMachineCooldownService;
 import com.gameplatform.server.service.link.DeviceAllocationService;
 import com.gameplatform.server.mapper.agent.LinkTaskMapper;
@@ -15,6 +17,7 @@ import org.springframework.stereotype.Service;
 import java.util.*;
 import java.util.concurrent.ConcurrentHashMap;
 import java.time.LocalDateTime;
+import java.time.Duration;
 import java.time.format.DateTimeFormatter;
 import java.time.format.DateTimeParseException;
 
@@ -68,6 +71,7 @@ public class DeviceStats {
     private final MemoryMachineCooldownService cooldownService;
     private final DeviceStatusTransitionMapper transitionMapper;
     private final DeviceAllocationService deviceAllocationService;
+    private final LinkTaskStatusHistoryMapper statusHistoryMapper;
     private final SystemConfigService systemConfigService;
 
     // 记录上一次统计时每台设备的分类结果，用于检测状态变更
@@ -77,12 +81,14 @@ public class DeviceStats {
                        MemoryMachineCooldownService cooldownService,
                        DeviceStatusTransitionMapper transitionMapper,
                        DeviceAllocationService deviceAllocationService,
-                       SystemConfigService systemConfigService) {
+                       SystemConfigService systemConfigService,
+                       LinkTaskStatusHistoryMapper statusHistoryMapper) {
         this.linkTaskMapper = linkTaskMapper;
         this.cooldownService = cooldownService;
         this.transitionMapper = transitionMapper;
         this.deviceAllocationService = deviceAllocationService;
         this.systemConfigService = systemConfigService;
+        this.statusHistoryMapper = statusHistoryMapper;
     }
 
     /**
@@ -121,6 +127,19 @@ public class DeviceStats {
 //            log.debug("设备[{}] 原始脚本值='{}' | LOGGED_IN={} USING={} COOLDOWN={} NUMERIC={}",
 //                    deviceId, v, loggedIn, usingTask, cooldown, numeric);
 
+            // 当脚本值为配置的空闲标识时，若设备上存在 LOGGED_IN 且登录超过3分钟的任务，则自动完成这些任务
+            if (v != null && configuredIdle != null && configuredIdle.equals(v)) {
+                try {
+                    int completed = autoCompleteLoggedInTasksIfIdleOver3m(deviceId);
+                    if (completed > 0) {
+                        // 任务状态可能已变化，重新评估 loggedIn
+                        loggedIn = hasLoggedInTask(deviceId);
+                    }
+                } catch (Exception e) {
+                    log.warn("autoCompleteLoggedInTasksIfIdleOver3m 执行异常 device={} err={}", deviceId, e.getMessage());
+                }
+            }
+
             // 分类与原因
             Category newCategory;
             String reason;
@@ -276,6 +295,48 @@ public class DeviceStats {
         return selectedDeviceId;
     }
 
+    /**
+     * 当脚本回报为配置的空闲标识时，如果设备上仍有 LOGGED_IN 任务且运行超过3分钟，则将其自动标记为 COMPLETED。
+     * 返回成功完成的任务数量。
+     */
+    private int autoCompleteLoggedInTasksIfIdleOver3m(String deviceId) {
+        List<LinkTask> loggedInTasks = linkTaskMapper.findByMachineIdAndStatus(deviceId, "LOGGED_IN");
+        if (loggedInTasks == null || loggedInTasks.isEmpty()) {
+            return 0;
+        }
+        LocalDateTime now = LocalDateTime.now();
+        int completed = 0;
+        for (LinkTask task : loggedInTasks) {
+            LocalDateTime loginAt = task.getLoginAt();
+            boolean over3m = loginAt != null && loginAt.isBefore(now.minusMinutes(3));
+            if (!over3m) {
+                continue;
+            }
+            String prev = task.getStatus();
+            task.setStatus("COMPLETED");
+            task.setReason("AUTO_COMPLETE_IDLE_3M");
+            task.setUpdatedAt(now);
+            try {
+                int updated = linkTaskMapper.update(task);
+                if (updated > 0) {
+                    Integer sinceLoginSeconds = loginAt != null ? (int) Duration.between(loginAt, now).getSeconds() : null;
+                    try {
+                        statusHistoryMapper.insert(new LinkTaskStatusHistory(
+                                task.getId(), task.getCodeNo(), deviceId,
+                                prev, "COMPLETED", "DEVICE_STATS", "idleConfiguredAndRunningOver3m",
+                                sinceLoginSeconds, null
+                        ));
+                    } catch (Exception ignore) {}
+                    completed++;
+                    log.info("自动完成任务：codeNo={} device={} loginAt={} 超过3分钟", task.getCodeNo(), deviceId, loginAt);
+                }
+            } catch (Exception e) {
+                log.warn("自动完成任务失败：codeNo={} device={} err={}", task.getCodeNo(), deviceId, e.getMessage());
+            }
+        }
+        return completed;
+    }
+
     private boolean hasLoggedInTask(String deviceId) {
         List<LinkTask> loggedInTasks = linkTaskMapper.findByMachineIdAndStatus(deviceId, "LOGGED_IN");
         return loggedInTasks != null && !loggedInTasks.isEmpty();