diff --git a/app/Http/Controllers/Remote/UserController.php b/app/Http/Controllers/Remote/UserController.php
index a395d6b..4aa2b6b 100644
--- a/app/Http/Controllers/Remote/UserController.php
+++ b/app/Http/Controllers/Remote/UserController.php
@@ -5,8 +5,9 @@
 use App\Models\Host;
 use App\Models\User;
 use App\Models\Transaction;
-// use Illuminate\Http\Request;
+use Illuminate\Http\Request;
 use App\Http\Controllers\Controller;
+use App\Exceptions\User\BalanceNotEnoughException;
 
 class UserController extends Controller
 {
@@ -29,4 +30,22 @@ public function hosts(User $user)
 
         return $this->success($hosts);
     }
+
+    public function reduce(Request $request, User $user)
+    {
+        $this->validate($request, [
+            'amount' => 'required|numeric|min:0.01|max:10000',
+            'description' => 'required|string',
+        ]);
+
+        $module = auth('remote')->user();
+
+        $transaction = new Transaction();
+
+        try {
+            $transaction->reduceAmountModuleFail($user->id, $module->id, $request->amount, $request->description);
+        } catch (BalanceNotEnoughException) {
+            return $this->error('余额不足');
+        }
+    }
 }
diff --git a/routes/remote.php b/routes/remote.php
index 4d5abc6..d3e73b2 100644
--- a/routes/remote.php
+++ b/routes/remote.php
@@ -92,6 +92,10 @@
     'uses' => '\App\Http\Controllers\Remote\UserController@show'
 ]);
 
+$router->post('users/{user}/reduce', [
+    'uses' => '\App\Http\Controllers\Remote\UserController@reduce'
+]);
+
 $router->get('users/{user}/hosts', [
     'uses' => '\App\Http\Controllers\Remote\UserController@hosts'
 ]);