diff --git a/app/Modules/Inventory/Controllers/WarehouseController.php b/app/Modules/Inventory/Controllers/WarehouseController.php
index 707164a..976fbe4 100644
--- a/app/Modules/Inventory/Controllers/WarehouseController.php
+++ b/app/Modules/Inventory/Controllers/WarehouseController.php
@@ -26,9 +26,12 @@ class WarehouseController extends Controller
 
         $warehouses = $query->withSum('inventories as book_stock', 'quantity') // 帳面庫存 = 所有庫存總和
             ->withSum(['inventories as available_stock' => function ($query) {
-                // 可用庫存 = 庫存 > 0 且 品質正常 且 (未過期 或 無效期)
+                // 可用庫存 = 庫存 > 0 且 品質正常 且 (未過期 或 無效期) 且 倉庫類型不為瑕疵倉
                 $query->where('quantity', '>', 0)
                       ->where('quality_status', 'normal')
+                      ->whereHas('warehouse', function ($q) {
+                          $q->where('type', '!=', \App\Enums\WarehouseType::QUARANTINE);
+                      })
                       ->where(function ($q) {
                           $q->whereNull('expiry_date')
                             ->orWhere('expiry_date', '>=', now());
@@ -38,20 +41,15 @@ class WarehouseController extends Controller
             ->paginate(10)
             ->withQueryString();
 
-        // 修正各倉庫列表中的可用庫存計算：若倉庫不可銷售，則可用庫存為 0
-        $warehouses->getCollection()->transform(function ($w) {
-            if (!$w->is_sellable) {
-                $w->available_stock = 0;
-            }
-            return $w;
-        });
+        // 移除原本對 is_sellable 的手動修正邏輯，現在由 type 自動過濾
+
 
         // 計算全域總計 (不分頁)
         $totals = [
             'available_stock' => \App\Modules\Inventory\Models\Inventory::where('quantity', '>', 0)
                 ->where('quality_status', 'normal')
                 ->whereHas('warehouse', function ($q) {
-                    $q->where('is_sellable', true);
+                    $q->where('type', '!=', \App\Enums\WarehouseType::QUARANTINE);
                 })
                 ->where(function ($q) {
                     $q->whereNull('expiry_date')
@@ -73,7 +71,6 @@ class WarehouseController extends Controller
             'name' => 'required|string|max:50',
             'address' => 'nullable|string|max:255',
             'description' => 'nullable|string',
-            'is_sellable' => 'nullable|boolean',
             'type' => 'required|string',
             'license_plate' => 'nullable|string|max:20',
             'driver_name' => 'nullable|string|max:50',
@@ -98,7 +95,6 @@ class WarehouseController extends Controller
             'name' => 'required|string|max:50',
             'address' => 'nullable|string|max:255',
             'description' => 'nullable|string',
-            'is_sellable' => 'nullable|boolean',
             'type' => 'required|string',
             'license_plate' => 'nullable|string|max:20',
             'driver_name' => 'nullable|string|max:50',
diff --git a/app/Modules/Inventory/Models/Warehouse.php b/app/Modules/Inventory/Models/Warehouse.php
index 96cb9dd..4e6b2fc 100644
--- a/app/Modules/Inventory/Models/Warehouse.php
+++ b/app/Modules/Inventory/Models/Warehouse.php
@@ -18,13 +18,11 @@ class Warehouse extends Model
         'type',
         'address',
         'description',
-        'is_sellable',
         'license_plate',
         'driver_name',
     ];
 
     protected $casts = [
-        'is_sellable' => 'boolean',
         'type' => \App\Enums\WarehouseType::class,
     ];
 
diff --git a/database/migrations/tenant/2026_01_27_102239_remove_is_sellable_from_warehouses.php b/database/migrations/tenant/2026_01_27_102239_remove_is_sellable_from_warehouses.php
new file mode 100644
index 0000000..2600bec
--- /dev/null
+++ b/database/migrations/tenant/2026_01_27_102239_remove_is_sellable_from_warehouses.php
@@ -0,0 +1,28 @@
+<?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('warehouses', function (Blueprint $table) {
+            $table->dropColumn('is_sellable');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::table('warehouses', function (Blueprint $table) {
+            $table->boolean('is_sellable')->default(true)->after('description')->comment('是否可銷售');
+        });
+    }
+};
diff --git a/resources/js/Components/Warehouse/WarehouseCard.tsx b/resources/js/Components/Warehouse/WarehouseCard.tsx
index 1433f19..0fe9c86 100644
--- a/resources/js/Components/Warehouse/WarehouseCard.tsx
+++ b/resources/js/Components/Warehouse/WarehouseCard.tsx
@@ -100,12 +100,18 @@ export default function WarehouseCard({
 
           {/* 統計區塊 - 狀態標籤 */}
           <div className="space-y-3">
-            {/* 銷售狀態 */}
+            {/* 銷售狀態與可用性說明 */}
             <div className="flex items-center justify-between">
-              <span className="text-sm text-gray-500">銷售狀態</span>
-              <Badge variant={warehouse.is_sellable ? "default" : "secondary"} className={warehouse.is_sellable ? "bg-green-600" : "bg-gray-400"}>
-                {warehouse.is_sellable ? "可銷售" : "暫停銷售"}
-              </Badge>
+              <span className="text-sm text-gray-500">庫存可用性</span>
+              {warehouse.type === 'quarantine' ? (
+                <Badge variant="secondary" className="bg-red-100 text-red-700 border-red-200">
+                  不計入可用
+                </Badge>
+              ) : (
+                <Badge variant="default" className="bg-green-600">
+                  計入可用
+                </Badge>
+              )}
             </div>
 
             {/* 低庫存警告狀態 */}
diff --git a/resources/js/Components/Warehouse/WarehouseDialog.tsx b/resources/js/Components/Warehouse/WarehouseDialog.tsx
index def5fd4..efcea62 100644
--- a/resources/js/Components/Warehouse/WarehouseDialog.tsx
+++ b/resources/js/Components/Warehouse/WarehouseDialog.tsx
@@ -62,7 +62,6 @@ export default function WarehouseDialog({
     address: string;
     description: string;
     type: WarehouseType;
-    is_sellable: boolean;
     license_plate: string;
     driver_name: string;
   }>({
@@ -71,7 +70,6 @@ export default function WarehouseDialog({
     address: "",
     description: "",
     type: "standard",
-    is_sellable: true,
     license_plate: "",
     driver_name: "",
   });
@@ -86,7 +84,6 @@ export default function WarehouseDialog({
         address: warehouse.address || "",
         description: warehouse.description || "",
         type: warehouse.type || "standard",
-        is_sellable: warehouse.is_sellable ?? true,
         license_plate: warehouse.license_plate || "",
         driver_name: warehouse.driver_name || "",
       });
@@ -97,7 +94,6 @@ export default function WarehouseDialog({
         address: "",
         description: "",
         type: "standard",
-        is_sellable: true,
         license_plate: "",
         driver_name: "",
       });
@@ -219,25 +215,7 @@ export default function WarehouseDialog({
                 </div>
               )}
 
-              {/* 銷售設定 */}
-              <div className="space-y-4">
-                <div className="border-b pb-2">
-                  <h4 className="text-sm text-gray-700">銷售設定</h4>
-                </div>
-                <div className="flex items-center space-x-2">
-                  <input
-                    type="checkbox"
-                    id="is_sellable"
-                    className="h-4 w-4 rounded border-gray-300 text-primary-main focus:ring-primary-main"
-                    checked={formData.is_sellable}
-                    onChange={(e) => setFormData({ ...formData, is_sellable: e.target.checked })}
-                  />
-                  <Label htmlFor="is_sellable">此倉庫可進行銷售扣庫</Label>
-                </div>
-                <p className="text-xs text-gray-500 ml-6">
-                  啟用後，該倉庫庫存可用於 POS 或訂單銷售扣減。總倉通常不啟用，門市與行動販賣車需啟用。
-                </p>
-              </div>
+
 
               {/* 區塊 B：位置 */}
               <div className="space-y-4">
diff --git a/resources/js/types/warehouse.ts b/resources/js/types/warehouse.ts
index 6801e01..bed4196 100644
--- a/resources/js/types/warehouse.ts
+++ b/resources/js/types/warehouse.ts
@@ -25,7 +25,6 @@ export interface Warehouse {
   total_quantity?: number;
   low_stock_count?: number;
   type?: WarehouseType;
-  is_sellable?: boolean;
   license_plate?: string; // 車牌號碼 (移動倉)
   driver_name?: string;   // 司機姓名 (移動倉)
   book_stock?: number;