diff --git a/backend/src/main/java/com/imeeting/controller/android/AndroidDeviceController.java b/backend/src/main/java/com/imeeting/controller/android/AndroidDeviceController.java
index 480b1b8..6bd52e2 100644
--- a/backend/src/main/java/com/imeeting/controller/android/AndroidDeviceController.java
+++ b/backend/src/main/java/com/imeeting/controller/android/AndroidDeviceController.java
@@ -5,7 +5,7 @@ import com.imeeting.dto.android.AndroidDeviceHomeStatsVO;
 import com.imeeting.dto.android.AndroidDeviceRegisterRequest;
 import com.imeeting.dto.android.AndroidDeviceRegisterResponse;
 import com.imeeting.service.android.AndroidAuthService;
-import com.imeeting.service.android.AndroidDeviceHomeService;
+import com.imeeting.service.android.AndroidDeviceService;
 import com.imeeting.service.android.AndroidDeviceRegistrationService;
 import com.imeeting.support.AndroidRequestLogHelper;
 import com.unisbase.annotation.Anonymous;
@@ -35,7 +35,7 @@ public class AndroidDeviceController {
 
     private final AndroidAuthService androidAuthService;
     private final AndroidDeviceRegistrationService androidDeviceRegistrationService;
-    private final AndroidDeviceHomeService androidDeviceHomeService;
+  private final AndroidDeviceService androidDeviceService;
 
     @Operation(summary = "设备自注册")
     @ApiResponses({
@@ -65,6 +65,34 @@ public class AndroidDeviceController {
         return ApiResponse.ok(response);
     }
 
+  @Operation(summary = "更新设备")
+  @ApiResponses({
+    @io.swagger.v3.oas.annotations.responses.ApiResponse(
+      responseCode = "200",
+      description = "更新设备信息",
+      content = @Content(schema = @Schema(implementation = AndroidDeviceRegisterResponse.class))
+    )
+  })
+  @PostMapping("/update")
+  @Anonymous
+  public ApiResponse update(HttpServletRequest request,
+                            @RequestBody(required = false) AndroidDeviceRegisterRequest command) {
+    if (command == null) {
+      throw new IllegalArgumentException("更新设备请求参数不能为空");
+    }
+    String tenantCode = request == null ? null : request.getHeader(TENANT_CODE_HEADER);
+    AndroidRequestLogHelper.logRequest(log, "Android设备", "更新设备", "request", command, "tenantCode", tenantCode);
+    AndroidAuthContext authContext = androidAuthService.authenticateHttp(request, false);
+    androidDeviceService.updateDevice(
+      tenantCode,
+      authContext.getDeviceId(),
+      command.getDeviceName(),
+      command.getTerminalType() == null ? authContext.getPlatform() : command.getTerminalType(),
+      command.getTerminalVersion() == null ? authContext.getAppVersion() : command.getTerminalVersion()
+    );
+    return ApiResponse.ok(null);
+  }
+
     @Operation(summary = "查询设备首页统计")
     @ApiResponses({
             @io.swagger.v3.oas.annotations.responses.ApiResponse(
@@ -78,7 +106,7 @@ public class AndroidDeviceController {
     public ApiResponse<AndroidDeviceHomeStatsVO> home(HttpServletRequest request) {
         AndroidRequestLogHelper.logRequest(log, "Android设备", "查询设备首页统计");
         AndroidAuthContext authContext = androidAuthService.authenticateHttp(request, true, true);
-        return ApiResponse.ok(androidDeviceHomeService.getHomeStats(authContext));
+      return ApiResponse.ok(androidDeviceService.getHomeStats(authContext));
     }
 
     private String resolveTenantCode(HttpServletRequest request, AndroidDeviceRegisterRequest command) {
diff --git a/backend/src/main/java/com/imeeting/mapper/DeviceInfoMapper.java b/backend/src/main/java/com/imeeting/mapper/DeviceInfoMapper.java
index 559a268..6fc16ad 100644
--- a/backend/src/main/java/com/imeeting/mapper/DeviceInfoMapper.java
+++ b/backend/src/main/java/com/imeeting/mapper/DeviceInfoMapper.java
@@ -31,7 +31,6 @@ public interface DeviceInfoMapper extends BaseMapper<DeviceInfoEntity> {
         UPDATE biz_device_info
         SET tenant_id = #{tenantId},
             user_id = #{userId},
-            terminal_type = #{terminalType},
             terminal_version = #{terminalVersion},
             last_online_at = #{lastOnlineAt},
             updated_at = CURRENT_TIMESTAMP
diff --git a/backend/src/main/java/com/imeeting/service/android/AndroidDeviceHomeService.java b/backend/src/main/java/com/imeeting/service/android/AndroidDeviceService.java
similarity index 58%
rename from backend/src/main/java/com/imeeting/service/android/AndroidDeviceHomeService.java
rename to backend/src/main/java/com/imeeting/service/android/AndroidDeviceService.java
index 369c43b..fa235ff 100644
--- a/backend/src/main/java/com/imeeting/service/android/AndroidDeviceHomeService.java
+++ b/backend/src/main/java/com/imeeting/service/android/AndroidDeviceService.java
@@ -3,7 +3,9 @@ package com.imeeting.service.android;
 import com.imeeting.dto.android.AndroidAuthContext;
 import com.imeeting.dto.android.AndroidDeviceHomeStatsVO;
 
-public interface AndroidDeviceHomeService {
+public interface AndroidDeviceService {
 
     AndroidDeviceHomeStatsVO getHomeStats(AndroidAuthContext authContext);
+
+  void updateDevice(String tenantCode, String deviceId, String deviceName, String terminalType, String terminalVersion);
 }
diff --git a/backend/src/main/java/com/imeeting/service/android/impl/AndroidDeviceRegistrationServiceImpl.java b/backend/src/main/java/com/imeeting/service/android/impl/AndroidDeviceRegistrationServiceImpl.java
index 0012499..1c391dd 100644
--- a/backend/src/main/java/com/imeeting/service/android/impl/AndroidDeviceRegistrationServiceImpl.java
+++ b/backend/src/main/java/com/imeeting/service/android/impl/AndroidDeviceRegistrationServiceImpl.java
@@ -1,5 +1,6 @@
 package com.imeeting.service.android.impl;
 
+import cn.hutool.core.util.StrUtil;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.imeeting.dto.android.AndroidDeviceRegisterResponse;
 import com.imeeting.entity.biz.DeviceInfoEntity;
@@ -44,7 +45,7 @@ public class AndroidDeviceRegistrationServiceImpl implements AndroidDeviceRegist
             existing.setStatus(1);
         }
         existing.setTenantId(tenant.getId());
-        existing.setDeviceName(normalize(deviceName));
+      existing.setDeviceName(StrUtil.isNotEmpty(existing.getDeviceName()) ? existing.getDeviceName() : normalize(deviceName));
         existing.setTerminalType(normalizeTerminalType(terminalType));
         existing.setTerminalVersion(normalize(terminalVersion));
         existing.setLastOnlineAt(LocalDateTime.now());
@@ -87,7 +88,7 @@ public class AndroidDeviceRegistrationServiceImpl implements AndroidDeviceRegist
 
     private String normalize(String value) {
         if (!StringUtils.hasText(value)) {
-            return null;
+          return "会议设备";
         }
         return value.trim();
     }
diff --git a/backend/src/main/java/com/imeeting/service/android/impl/AndroidDeviceHomeServiceImpl.java b/backend/src/main/java/com/imeeting/service/android/impl/AndroidDeviceServiceImpl.java
similarity index 91%
rename from backend/src/main/java/com/imeeting/service/android/impl/AndroidDeviceHomeServiceImpl.java
rename to backend/src/main/java/com/imeeting/service/android/impl/AndroidDeviceServiceImpl.java
index 9a85e1b..a1cfc19 100644
--- a/backend/src/main/java/com/imeeting/service/android/impl/AndroidDeviceHomeServiceImpl.java
+++ b/backend/src/main/java/com/imeeting/service/android/impl/AndroidDeviceServiceImpl.java
@@ -1,5 +1,7 @@
 package com.imeeting.service.android.impl;
 
+import cn.hutool.core.util.StrUtil;
+import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.imeeting.common.RedisKeys;
@@ -16,7 +18,7 @@ import com.imeeting.mapper.DeviceInfoMapper;
 import com.imeeting.mapper.DeviceLoginLogMapper;
 import com.imeeting.mapper.LicenseMapper;
 import com.imeeting.mapper.biz.MeetingMapper;
-import com.imeeting.service.android.AndroidDeviceHomeService;
+import com.imeeting.service.android.AndroidDeviceService;
 import com.imeeting.service.biz.MeetingPointsService;
 import com.imeeting.service.biz.TenantMeetingPointsSettingService;
 import com.imeeting.support.RedisSupport;
@@ -42,7 +44,7 @@ import java.util.zip.GZIPInputStream;
 @Service
 @RequiredArgsConstructor
 @Slf4j
-public class AndroidDeviceHomeServiceImpl implements AndroidDeviceHomeService {
+public class AndroidDeviceServiceImpl implements AndroidDeviceService {
 
     private static final Duration WEATHER_CACHE_TTL = Duration.ofHours(1);
     private static final Duration WEATHER_CONNECT_TIMEOUT = Duration.ofSeconds(5);
@@ -105,7 +107,29 @@ public class AndroidDeviceHomeServiceImpl implements AndroidDeviceHomeService {
       return vo;
     }
 
-    private Long calculateRemainingMinutes(Long tenantId, Long userId, boolean anonymous) {
+  @Override
+  public void updateDevice(String tenantCode, String deviceId, String deviceName, String terminalType, String terminalVersion) {
+    DeviceInfoEntity existingDevice = deviceInfoMapper.selectByDeviceCodeIgnoreTenant(deviceId);
+    boolean update = false;
+    if (StrUtil.isNotEmpty(deviceName)) {
+      existingDevice.setDeviceName(deviceName);
+      update = true;
+    }
+    if (StrUtil.isNotEmpty(terminalType)) {
+      existingDevice.setTerminalType(terminalType);
+      update = true;
+    }
+    if (StrUtil.isNotEmpty(terminalVersion)) {
+      existingDevice.setTerminalVersion(terminalVersion);
+      update = true;
+    }
+    if (!update) {
+      return;
+    }
+    deviceInfoMapper.updateBaseInfoByIdIgnoreTenant(existingDevice);
+  }
+
+  private Long calculateRemainingMinutes(Long tenantId, Long userId, boolean anonymous) {
         if (tenantId == null) {
             return 0L;
         }
diff --git a/backend/src/main/java/com/imeeting/service/biz/impl/DeviceOnlineManagementServiceImpl.java b/backend/src/main/java/com/imeeting/service/biz/impl/DeviceOnlineManagementServiceImpl.java
index 613da76..41a131f 100644
--- a/backend/src/main/java/com/imeeting/service/biz/impl/DeviceOnlineManagementServiceImpl.java
+++ b/backend/src/main/java/com/imeeting/service/biz/impl/DeviceOnlineManagementServiceImpl.java
@@ -58,7 +58,7 @@ public class DeviceOnlineManagementServiceImpl implements DeviceOnlineManagement
             return;
         }
         LocalDateTime now = LocalDateTime.now();
-        existing.setTerminalType(normalizeTerminalType(authContext.getPlatform()));
+//        existing.setTerminalType(normalizeTerminalType(authContext.getPlatform()));
         existing.setTerminalVersion(normalize(authContext.getAppVersion()));
         existing.setLastOnlineAt(now);
         existing.setUserId(authContext.getUserId());