diff --git a/module_base/src/main/java/com/lukouguoji/module_base/bean/GjcCheckInRecord.kt b/module_base/src/main/java/com/lukouguoji/module_base/bean/GjcCheckInRecord.kt
index 796c730..8d2f3a3 100644
--- a/module_base/src/main/java/com/lukouguoji/module_base/bean/GjcCheckInRecord.kt
+++ b/module_base/src/main/java/com/lukouguoji/module_base/bean/GjcCheckInRecord.kt
@@ -22,7 +22,9 @@ data class GjcCheckInRecord(
     var weight: Double = 0.0,      // 运抵重量
     var volume: Double = 0.0,      // 运抵体积
     var whId: Long = 0,            // GJC_WAREHOUSE.ID
-    var carWeight: String = ""     // 托盘自重
+    var carWeight: String = "",    // 托盘车重
+    var trayNumber: Int = 0,       // 托盘数量
+    var trayTotalWeight: Double = 0.0  // 托盘重量（托盘自重）
 ) : BaseObservable() {
 
     // 数据变化回调
@@ -53,4 +55,28 @@ data class GjcCheckInRecord(
                 onDataChanged?.invoke()
             }
         }
+
+    // 托盘自重编辑过程中的原始输入串（保持回显与输入一致，避免光标跳位）
+    // 不作为构造参数，data class copy 备份/恢复时自动丢弃，回退到 trayTotalWeight 显示
+    // @Transient：仅界面内部状态，不参与 Gson 序列化提交
+    @Transient
+    private var trayTotalWeightInput: String? = null
+
+    // 托盘自重的字符串表示（用于双向绑定）
+    // 业务规则：重量包含托盘自重，托盘自重编辑后，重量同步增减相同差值
+    @get:Bindable
+    var trayTotalWeightStr: String
+        get() = trayTotalWeightInput
+            ?: if (trayTotalWeight == 0.0) "" else trayTotalWeight.toString()
+        set(value) {
+            trayTotalWeightInput = value
+            val newTrayWeight = value.toDoubleOrNull() ?: 0.0
+            if (trayTotalWeight != newTrayWeight) {
+                weight = Math.round((weight + newTrayWeight - trayTotalWeight) * 100) / 100.0
+                trayTotalWeight = newTrayWeight
+                notifyPropertyChanged(BR.trayTotalWeightStr)
+                notifyPropertyChanged(BR.weightStr)
+                onDataChanged?.invoke()
+            }
+        }
 }
diff --git a/module_gjc/src/main/res/layout/item_gjc_check_in_record.xml b/module_gjc/src/main/res/layout/item_gjc_check_in_record.xml
index e1fcc60..c01dccf 100644
--- a/module_gjc/src/main/res/layout/item_gjc_check_in_record.xml
+++ b/module_gjc/src/main/res/layout/item_gjc_check_in_record.xml
@@ -67,17 +67,19 @@
             type="@{DataLayoutType.INPUT}"
             value="@={record.weightStr}" />
 
-        <!-- 托盘自重字段（只读） -->
+        <!-- 托盘自重字段（取托盘重量 trayTotalWeight，可编辑） -->
         <com.lukouguoji.module_base.ui.weight.data.layout.PadDataLayoutNew
             android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:layout_marginStart="10dp"
             android:layout_weight="1"
-            enable="@{false}"
+            enable="@{isEditMode}"
+            hint="@{`托盘自重`}"
+            inputType="@{android.text.InputType.TYPE_CLASS_NUMBER | android.text.InputType.TYPE_NUMBER_FLAG_DECIMAL}"
             title="@{`托盘自重`}"
             titleLength="@{4}"
             type="@{DataLayoutType.INPUT}"
-            value="@{record.carWeight}" />
+            value="@={record.trayTotalWeightStr}" />
 
         <!-- 计重时间字段（只读） -->
         <com.lukouguoji.module_base.ui.weight.data.layout.PadDataLayoutNew