diff --git a/app/Http/Controllers/Admin/WarehouseController.php b/app/Http/Controllers/Admin/WarehouseController.php
index 50aa134..101ab38 100644
--- a/app/Http/Controllers/Admin/WarehouseController.php
+++ b/app/Http/Controllers/Admin/WarehouseController.php
@@ -487,7 +487,18 @@ class WarehouseController extends Controller
                 'created_by' => Auth::id(),
             ]);
 
+            // 預先取得商品資訊以建立快照
+            $productIds = collect($validated['items'])->pluck('product_id')->unique()->toArray();
+            $products = \App\Models\Product\Product::whereIn('id', $productIds)->get()->keyBy('id');
+
             foreach ($validated['items'] as $item) {
+                $product = $products->get($item['product_id']);
+                if ($product) {
+                    $item['snapshot_product_name'] = $product->name;
+                    $item['snapshot_product_name_key'] = $product->name_dictionary_key;
+                    $item['snapshot_product_barcode'] = $product->barcode;
+                    $item['snapshot_product_image_url'] = $product->image_url;
+                }
                 $order->items()->create($item);
             }
         });
@@ -798,9 +809,14 @@ class WarehouseController extends Controller
                 'created_by' => Auth::id(),
             ]);
 
+            // 預先取得商品資訊以建立快照
+            $productIds = collect($validated['items'])->pluck('product_id')->unique()->toArray();
+            $products = \App\Models\Product\Product::whereIn('id', $productIds)->get()->keyBy('id');
+
             // 批量寫入明細（遵循 DB Best Practice: 不在迴圈中逐筆 create）
             $itemsData = [];
             foreach ($validated['items'] as $item) {
+                $product = $products->get($item['product_id']);
                 $itemsData[] = [
                     'replenishment_order_id' => $order->id,
                     'product_id' => $item['product_id'],
@@ -808,6 +824,10 @@ class WarehouseController extends Controller
                     'quantity' => $item['quantity'],
                     'current_stock' => $item['current_stock'] ?? 0,
                     'max_stock' => $item['max_stock'] ?? 0,
+                    'snapshot_product_name' => $product ? $product->name : null,
+                    'snapshot_product_name_key' => $product ? $product->name_dictionary_key : null,
+                    'snapshot_product_barcode' => $product ? $product->barcode : null,
+                    'snapshot_product_image_url' => $product ? $product->image_url : null,
                     'created_at' => now(),
                     'updated_at' => now(),
                 ];
@@ -923,8 +943,13 @@ class WarehouseController extends Controller
                 'created_by' => Auth::id(),
             ]);
 
+            // 預先取得商品資訊以建立快照
+            $productIds = collect($validated['items'])->pluck('product_id')->unique()->toArray();
+            $products = \App\Models\Product\Product::whereIn('id', $productIds)->get()->keyBy('id');
+
             $itemsData = [];
             foreach ($validated['items'] as $item) {
+                $product = $products->get($item['product_id']);
                 $itemsData[] = [
                     'replenishment_order_id' => $order->id,
                     'product_id' => $item['product_id'],
@@ -932,6 +957,10 @@ class WarehouseController extends Controller
                     'quantity' => $item['quantity'],
                     'current_stock' => $item['current_stock'] ?? 0,
                     'max_stock' => $item['max_stock'] ?? 0,
+                    'snapshot_product_name' => $product ? $product->name : null,
+                    'snapshot_product_name_key' => $product ? $product->name_dictionary_key : null,
+                    'snapshot_product_barcode' => $product ? $product->barcode : null,
+                    'snapshot_product_image_url' => $product ? $product->image_url : null,
                     'created_at' => now(),
                     'updated_at' => now(),
                 ];
@@ -1205,14 +1234,14 @@ class WarehouseController extends Controller
             ->where('id', $id)
             ->firstOrFail();
 
-        $items = ReplenishmentOrderItem::with('product.translations')
+        $items = ReplenishmentOrderItem::with(['translations', 'product.translations'])
             ->where('replenishment_order_id', $id)
             ->get()
             ->map(function ($item) {
                 return [
                     'product_id' => $item->product_id,
-                    'product_name' => $item->product?->localized_name ?? 'Unknown',
-                    'image_url' => $item->product?->image_url,
+                    'product_name' => $item->localized_name ?: __('Unknown'),
+                    'image_url' => $item->image_url,
                     'quantity' => $item->quantity,
                     'slot_no' => $item->slot_no,
                     'current_stock' => $item->current_stock,
@@ -1376,14 +1405,14 @@ class WarehouseController extends Controller
             ->where('id', $id)
             ->firstOrFail();
 
-        $items = \App\Models\Warehouse\TransferOrderItem::with('product.translations')
+        $items = \App\Models\Warehouse\TransferOrderItem::with(['translations', 'product.translations'])
             ->where('transfer_order_id', $id)
             ->get()
             ->map(function($item) {
                 return [
                     'product_id' => $item->product_id,
-                    'product_name' => $item->product?->localized_name ?? __('Unknown'),
-                    'image_url' => $item->product?->image_url,
+                    'product_name' => $item->localized_name ?: __('Unknown'),
+                    'image_url' => $item->image_url,
                     'quantity' => (int)$item->quantity,
                 ];
             });
diff --git a/app/Models/Warehouse/ReplenishmentOrderItem.php b/app/Models/Warehouse/ReplenishmentOrderItem.php
index 13fb7ae..cd907ef 100644
--- a/app/Models/Warehouse/ReplenishmentOrderItem.php
+++ b/app/Models/Warehouse/ReplenishmentOrderItem.php
@@ -16,6 +16,10 @@ class ReplenishmentOrderItem extends Model
         'quantity',
         'current_stock',
         'max_stock',
+        'snapshot_product_name',
+        'snapshot_product_name_key',
+        'snapshot_product_barcode',
+        'snapshot_product_image_url',
     ];
 
     protected $casts = [
@@ -24,6 +28,11 @@ class ReplenishmentOrderItem extends Model
         'max_stock' => 'integer',
     ];
 
+    /**
+     * 自動附加到 JSON/陣列輸出的屬性
+     */
+    protected $appends = ['localized_name', 'barcode', 'image_url'];
+
     /**
      * 所屬補貨單
      */
@@ -33,10 +42,85 @@ class ReplenishmentOrderItem extends Model
     }
 
     /**
-     * 對應商品
+     * 對應商品 (包含被軟刪除的商品以相容舊資料)
      */
     public function product()
     {
-        return $this->belongsTo(\App\Models\Product\Product::class);
+        return $this->belongsTo(\App\Models\Product\Product::class)->withTrashed();
+    }
+
+    /**
+     * 取得快照商品名稱的字典翻譯
+     */
+    public function translations()
+    {
+        return $this->hasMany(\App\Models\System\Translation::class, 'key', 'snapshot_product_name_key')
+            ->where('group', 'product');
+    }
+
+    /**
+     * 取得商品名稱。
+     * 回退順序：快照字典語系翻譯 → 快照字典 zh_TW → 快照名稱 → 關聯商品名稱 → 空值
+     */
+    public function getLocalizedNameAttribute(): string
+    {
+        if ($this->snapshot_product_name_key) {
+            if ($this->relationLoaded('translations') && $this->translations->isNotEmpty()) {
+                $locale = app()->getLocale();
+                // 優先找當前語系
+                $translation = $this->translations->firstWhere('locale', $locale);
+                if ($translation) {
+                    return $translation->value;
+                }
+                // 回退至 zh_TW
+                $fallback = $this->translations->firstWhere('locale', 'zh_TW');
+                if ($fallback) {
+                    return $fallback->value;
+                }
+            }
+        }
+
+        if ($this->snapshot_product_name) {
+            return $this->snapshot_product_name;
+        }
+
+        if ($this->product) {
+            return $this->product->localized_name;
+        }
+
+        return '';
+    }
+
+    /**
+     * 取得商品條碼。
+     * 回退順序：快照條碼 → 關聯商品條碼 → 空值
+     */
+    public function getBarcodeAttribute(): string
+    {
+        if ($this->snapshot_product_barcode) {
+            return $this->snapshot_product_barcode;
+        }
+
+        if ($this->product) {
+            return $this->product->barcode ?? '';
+        }
+
+        return '';
+    }
+
+    /**
+     * 取得商品圖片。
+     * 回退順序：快照圖片 → 關聯商品圖片 → 空值
+     */
+    public function getImageUrlAttribute(): ?string
+    {
+        $url = $this->snapshot_product_image_url ?: ($this->product ? $this->product->image_url : null);
+
+        // 防禦性過濾無效路徑或空值
+        if (empty($url) || trim($url) === '' || in_array(rtrim($url, '/'), ['/storage', '/storage/products'])) {
+            return null;
+        }
+
+        return $url;
     }
 }
diff --git a/app/Models/Warehouse/TransferOrderItem.php b/app/Models/Warehouse/TransferOrderItem.php
index f08d17d..1235ebf 100644
--- a/app/Models/Warehouse/TransferOrderItem.php
+++ b/app/Models/Warehouse/TransferOrderItem.php
@@ -13,12 +13,21 @@ class TransferOrderItem extends Model
         'transfer_order_id',
         'product_id',
         'quantity',
+        'snapshot_product_name',
+        'snapshot_product_name_key',
+        'snapshot_product_barcode',
+        'snapshot_product_image_url',
     ];
 
     protected $casts = [
         'quantity' => 'integer',
     ];
 
+    /**
+     * 自動附加到 JSON/陣列輸出的屬性
+     */
+    protected $appends = ['localized_name', 'barcode', 'image_url'];
+
     /**
      * 所屬調撥單
      */
@@ -28,10 +37,85 @@ class TransferOrderItem extends Model
     }
 
     /**
-     * 對應商品
+     * 對應商品 (包含被軟刪除的商品以相容舊資料)
      */
     public function product()
     {
-        return $this->belongsTo(\App\Models\Product\Product::class);
+        return $this->belongsTo(\App\Models\Product\Product::class)->withTrashed();
+    }
+
+    /**
+     * 取得快照商品名稱的字典翻譯
+     */
+    public function translations()
+    {
+        return $this->hasMany(\App\Models\System\Translation::class, 'key', 'snapshot_product_name_key')
+            ->where('group', 'product');
+    }
+
+    /**
+     * 取得商品名稱。
+     * 回退順序：快照字典語系翻譯 → 快照字典 zh_TW → 快照名稱 → 關聯商品名稱 → 空值
+     */
+    public function getLocalizedNameAttribute(): string
+    {
+        if ($this->snapshot_product_name_key) {
+            if ($this->relationLoaded('translations') && $this->translations->isNotEmpty()) {
+                $locale = app()->getLocale();
+                // 優先找當前語系
+                $translation = $this->translations->firstWhere('locale', $locale);
+                if ($translation) {
+                    return $translation->value;
+                }
+                // 回退至 zh_TW
+                $fallback = $this->translations->firstWhere('locale', 'zh_TW');
+                if ($fallback) {
+                    return $fallback->value;
+                }
+            }
+        }
+
+        if ($this->snapshot_product_name) {
+            return $this->snapshot_product_name;
+        }
+
+        if ($this->product) {
+            return $this->product->localized_name;
+        }
+
+        return '';
+    }
+
+    /**
+     * 取得商品條碼。
+     * 回退順序：快照條碼 → 關聯商品條碼 → 空值
+     */
+    public function getBarcodeAttribute(): string
+    {
+        if ($this->snapshot_product_barcode) {
+            return $this->snapshot_product_barcode;
+        }
+
+        if ($this->product) {
+            return $this->product->barcode ?? '';
+        }
+
+        return '';
+    }
+
+    /**
+     * 取得商品圖片。
+     * 回退順序：快照圖片 → 關聯商品圖片 → 空值
+     */
+    public function getImageUrlAttribute(): ?string
+    {
+        $url = $this->snapshot_product_image_url ?: ($this->product ? $this->product->image_url : null);
+
+        // 防禦性過濾無效路徑或空值
+        if (empty($url) || trim($url) === '' || in_array(rtrim($url, '/'), ['/storage', '/storage/products'])) {
+            return null;
+        }
+
+        return $url;
     }
 }
diff --git a/database/migrations/2026_05_21_161722_add_snapshots_to_order_items_tables.php b/database/migrations/2026_05_21_161722_add_snapshots_to_order_items_tables.php
new file mode 100644
index 0000000..b017cb8
--- /dev/null
+++ b/database/migrations/2026_05_21_161722_add_snapshots_to_order_items_tables.php
@@ -0,0 +1,52 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::table('transfer_order_items', function (Blueprint $table) {
+            $table->string('snapshot_product_name')->nullable()->after('quantity');
+            $table->string('snapshot_product_name_key')->nullable()->after('snapshot_product_name');
+            $table->string('snapshot_product_barcode')->nullable()->after('snapshot_product_name_key');
+            $table->string('snapshot_product_image_url')->nullable()->after('snapshot_product_barcode');
+        });
+
+        Schema::table('replenishment_order_items', function (Blueprint $table) {
+            $table->string('snapshot_product_name')->nullable()->after('max_stock');
+            $table->string('snapshot_product_name_key')->nullable()->after('snapshot_product_name');
+            $table->string('snapshot_product_barcode')->nullable()->after('snapshot_product_name_key');
+            $table->string('snapshot_product_image_url')->nullable()->after('snapshot_product_barcode');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::table('transfer_order_items', function (Blueprint $table) {
+            $table->dropColumn([
+                'snapshot_product_name',
+                'snapshot_product_name_key',
+                'snapshot_product_barcode',
+                'snapshot_product_image_url'
+            ]);
+        });
+
+        Schema::table('replenishment_order_items', function (Blueprint $table) {
+            $table->dropColumn([
+                'snapshot_product_name',
+                'snapshot_product_name_key',
+                'snapshot_product_barcode',
+                'snapshot_product_image_url'
+            ]);
+        });
+    }
+};