diff --git a/app/src/main/java/com/sw/platecabinet/activity/BaseActivity.kt b/app/src/main/java/com/sw/platecabinet/activity/BaseActivity.kt
index b0aa8f5..6303a58 100644
--- a/app/src/main/java/com/sw/platecabinet/activity/BaseActivity.kt
+++ b/app/src/main/java/com/sw/platecabinet/activity/BaseActivity.kt
@@ -14,6 +14,7 @@ import androidx.activity.enableEdgeToEdge
 import androidx.activity.viewModels
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.view.WindowCompat
+import androidx.lifecycle.lifecycleScope
 import androidx.viewbinding.ViewBinding
 import com.google.gson.Gson
 import com.sw.inbound.utils.DateTimeUtils
@@ -468,9 +469,9 @@ abstract class BaseActivity<VB : ViewBinding> : AppCompatActivity() {
 
     public val recognizeViewModel by viewModels<RecognizeViewModel>()
     private fun updateFaceData(list: List<UserFaceModel>) {
-        Thread {
+        lifecycleScope.launch(Dispatchers.IO) {
             val faceList = mutableListOf<FaceEntity>()
-            val faceDao = FaceDatabase.getInstance(this).faceDao()
+            val faceDao = FaceDatabase.getInstance(this@BaseActivity).faceDao()
             try {
                 list.forEach { model ->
                     if (model.faceDeleted == true) {
@@ -480,19 +481,14 @@ abstract class BaseActivity<VB : ViewBinding> : AppCompatActivity() {
 //                            FaceEntity("-1", null, byteArrayOf(-1)).also { it.userType = "-1" }
 //                        }
                     } else {
-                        val faceData = faceDao.queryByUserName(model.userId)
-                        if (faceData == null) {
-                            //保存数据
-                            val faceEntity = FaceEntity(
-                                model.userId,
-                                null,
-                                Base64.decode(model.faceFeatureStr)
-                            ).also {
-                                //1-会员、2-临时用户
-                                it.userType = if (model.member) "1" else "2"
-                                it.cardNo = model.cardNo
-                            }
-                            faceList.add(faceEntity)
+                        // 获取该用户所有已存特征，判断当前特征是否已存在
+                        val existList = faceDao.queryAllByUserName(model.userId)
+                        val featureMatches = existList.map { Base64.encode(it.featureData) == model.faceFeatureStr }
+                        Timber.d("userId=${model.userId}, 已存记录数=${existList.size}, 各条特征是否与服务器一致=$featureMatches")
+                        val alreadyExists = featureMatches.any { it }
+                        if (!alreadyExists) {
+                            //当前特征不存在，保存
+                            faceList.add(getNewFaceEntity(model))
                         }
                     }
                 }
@@ -501,13 +497,25 @@ abstract class BaseActivity<VB : ViewBinding> : AppCompatActivity() {
             }
             try {
                 if (faceList.isNotEmpty()) {
-                    FaceDatabase.getInstance(this).faceDao().insert(faceList)
+                    FaceDatabase.getInstance(this@BaseActivity).faceDao().insert(faceList)
                 }
                 recognizeViewModel.refreshFaceList()
             } catch (e: Exception) {
                 e.printStackTrace()
             }
-        }.start()
+        }
+    }
+
+    private fun getNewFaceEntity(model: UserFaceModel) : FaceEntity {
+        return FaceEntity(
+            model.userId,
+            null,
+            Base64.decode(model.faceFeatureStr)
+        ).also {
+            //1-会员、2-临时用户
+            it.userType = if (model.member) "1" else "2"
+            it.cardNo = model.cardNo
+        }
     }
 
     fun initPlateList() {
diff --git a/lib_face/src/main/java/com/sw/plate/utils/arcface/facedb/dao/FaceDao.java b/lib_face/src/main/java/com/sw/plate/utils/arcface/facedb/dao/FaceDao.java
index e22cb17..34e2b2f 100644
--- a/lib_face/src/main/java/com/sw/plate/utils/arcface/facedb/dao/FaceDao.java
+++ b/lib_face/src/main/java/com/sw/plate/utils/arcface/facedb/dao/FaceDao.java
@@ -92,6 +92,15 @@ public interface FaceDao {
     @Query("SELECT * FROM face WHERE user_name = :userName limit 1")
     FaceEntity queryByUserName(String userName);
 
+    /**
+     * 查询指定用户的所有人脸记录（同一用户可能存有多条特征数据）
+     *
+     * @param userName 用户ID
+     * @return 该用户所有人脸记录列表
+     */
+    @Query("SELECT * FROM face WHERE user_name = :userName")
+    List<FaceEntity> queryAllByUserName(String userName);
+
     /**
      * @return 删除临时用户人脸
      */