diff --git a/module_base/src/main/java/com/lukouguoji/module_base/http/net/Api.kt b/module_base/src/main/java/com/lukouguoji/module_base/http/net/Api.kt
index 8dc41c6..a160279 100644
--- a/module_base/src/main/java/com/lukouguoji/module_base/http/net/Api.kt
+++ b/module_base/src/main/java/com/lukouguoji/module_base/http/net/Api.kt
@@ -554,6 +554,13 @@ interface Api {
     @POST("IntExpWeighting/weight")
     suspend fun submitGjcBoxWeighing(@Body data: RequestBody): BaseResultBean<SimpleResultBean>
 
+    /**
+     * 国际出港板箱过磅-根据ULD查询正在使用的记录
+     * 接口路径: /IntExpWeighting/queryUsingUldByUld
+     */
+    @GET("IntExpWeighting/queryUsingUldByUld")
+    suspend fun queryUsingUldByUld(@Query("uld") uld: String): BaseResultBean<GjcUldUseBean>
+
     // ==================== 国际出港-出港组装 ====================
 
     /**
diff --git a/module_gjc/src/main/java/com/lukouguoji/gjc/viewModel/GjcBoxWeighingAddViewModel.kt b/module_gjc/src/main/java/com/lukouguoji/gjc/viewModel/GjcBoxWeighingAddViewModel.kt
index 33b85e9..c51ca39 100644
--- a/module_gjc/src/main/java/com/lukouguoji/gjc/viewModel/GjcBoxWeighingAddViewModel.kt
+++ b/module_gjc/src/main/java/com/lukouguoji/gjc/viewModel/GjcBoxWeighingAddViewModel.kt
@@ -39,6 +39,9 @@ class GjcBoxWeighingAddViewModel : BaseViewModel() {
     // 数据Bean
     val dataBean = MutableLiveData(GjcUldUseBean())
 
+    // 保存 queryUsingUldByUld 返回的数据（用于复磅场景）
+    private var usingUldData: GjcUldUseBean? = null
+
     // 地磅集成 - 暂时注释
     // val diBangModel = DiBangWeightModel()
     val channel = MutableLiveData("")  // 通道号（用于控制地磅key）
@@ -295,6 +298,9 @@ class GjcBoxWeighingAddViewModel : BaseViewModel() {
         lastQueriedFlight = ""
         lastQueriedCarId = ""
         lastQueriedUld = ""
+
+        // 重置 ULD 使用记录
+        usingUldData = null
     }
 
     /**
@@ -313,8 +319,14 @@ class GjcBoxWeighingAddViewModel : BaseViewModel() {
         if (bean.carId.verifyNullOrEmpty("请输入架子车号")) return
         if (bean.uld.verifyNullOrEmpty("请输入ULD编号")) return
 
-        // 提交数据
-        val params = mapOf(
+        // 验证是否已组装（复磅场景必须有 useId）
+        if (usingUldData == null || usingUldData?.useId == 0L) {
+            showToast("未组装，不可复磅")
+            return
+        }
+
+        // 构建基础提交参数
+        val baseParams = mutableMapOf(
             "carId" to bean.carId,
             "passageway" to bean.passageway,
             "uld" to bean.uld,
@@ -333,7 +345,38 @@ class GjcBoxWeighingAddViewModel : BaseViewModel() {
             "netWeight" to bean.netWeight,
             "cargoWeight" to bean.cargoWeight,
             "printTag" to printTag.value
-        ).toRequestBody(removeEmptyOrNull = true)
+        )
+
+        // 如果有 usingUldData（复磅场景），将其所有字段添加到提交参数
+        usingUldData?.let { usingData ->
+            baseParams["useId"] = usingData.useId
+            baseParams["cargoType"] = usingData.cargoType
+            baseParams["consumeWeight"] = usingData.consumeWeight
+            baseParams["volume"] = usingData.volume
+            baseParams["maxVolume"] = usingData.maxVolume
+            baseParams["maxWeight"] = usingData.maxWeight
+            baseParams["fdep"] = usingData.fdep
+            baseParams["fClose"] = usingData.fClose
+            baseParams["wtId"] = usingData.wtId
+            baseParams["wtUsername"] = usingData.wtUsername
+            baseParams["wtDate"] = usingData.wtDate
+            baseParams["ldId"] = usingData.ldId
+            baseParams["ldUserName"] = usingData.ldUserName
+            baseParams["ldDate"] = usingData.ldDate
+            baseParams["hoId"] = usingData.hoId
+            baseParams["hoUserName"] = usingData.hoUserName
+            baseParams["hoDate"] = usingData.hoDate
+            baseParams["uldCarrier"] = usingData.uldCarrier
+            baseParams["uldFlag"] = usingData.uldFlag
+            baseParams["status"] = usingData.status
+            baseParams["passagewayName"] = usingData.passagewayName
+            baseParams["location"] = usingData.location
+            baseParams["checkFlag"] = usingData.checkFlag
+            baseParams["emptyUld"] = usingData.emptyUld
+        }
+
+        // 转换为 RequestBody
+        val params = baseParams.toRequestBody(removeEmptyOrNull = true)
 
         launchLoadingCollect({
             NetApply.api.submitGjcBoxWeighing(params)
@@ -416,6 +459,26 @@ class GjcBoxWeighingAddViewModel : BaseViewModel() {
                 }
             }
         }
+
+        // 查询正在使用的 ULD 记录（复磅场景）
+        launchCollect({ NetApply.api.queryUsingUldByUld(uldNo) }) {
+            onSuccess = { result ->
+                val usingData = result.data
+                if (usingData != null && usingData.useId > 0) {
+                    // 保存返回的数据，用于提交时传递
+                    usingUldData = usingData
+                } else {
+                    // 没有 useId，说明未组装，不可复磅
+                    usingUldData = null
+                    showToast("未组装，不可复磅")
+                }
+            }
+            onFailed = { _, _ ->
+                // 接口报错时也认为未组装
+                usingUldData = null
+                showToast("未组装，不可复磅")
+            }
+        }
     }
 
     /**
diff --git a/module_gjc/src/main/res/layout/activity_gjc_box_weighing.xml b/module_gjc/src/main/res/layout/activity_gjc_box_weighing.xml
index d981801..a6c1c2e 100644
--- a/module_gjc/src/main/res/layout/activity_gjc_box_weighing.xml
+++ b/module_gjc/src/main/res/layout/activity_gjc_box_weighing.xml
@@ -67,7 +67,8 @@
                 icon="@{@drawable/img_scan}"
                 setOnIconClickListener="@{()-> viewModel.carIdScanClick()}"
                 type="@{SearchLayoutType.INPUT}"
-                value="@={viewModel.carId}" />
+                value="@={viewModel.carId}"
+                setUpperCaseAlphanumeric="@{true}" />
 
             <!-- ULD编号 -->
             <com.lukouguoji.module_base.ui.weight.search.layout.PadSearchLayout
@@ -78,7 +79,8 @@
                 icon="@{@drawable/img_scan}"
                 setOnIconClickListener="@{()-> viewModel.uldScanClick()}"
                 type="@{SearchLayoutType.INPUT}"
-                value="@={viewModel.uld}" />
+                value="@={viewModel.uld}"
+                setUpperCaseAlphanumeric="@{true}" />
 
             <!-- 搜索和添加按钮 -->
             <LinearLayout