diff --git a/app/Http/Controllers/BendingBaseController.php b/app/Http/Controllers/BendingBaseController.php
index c12bf0ea..216f34a0 100644
--- a/app/Http/Controllers/BendingBaseController.php
+++ b/app/Http/Controllers/BendingBaseController.php
@@ -37,8 +37,27 @@ public function index(Request $request): View|\Illuminate\Http\Response
         $params = $request->only(['item_sep', 'item_bending', 'material', 'model_UA', 'item_name', 'search', 'page', 'size']);
         $params['size'] = $params['size'] ?? 30;
 
-        $response = $this->api()->get('/api/v1/bending-items', $params);
-        $body = $response->successful() ? $response->json('data', []) : [];
+        $apiError = null;
+        try {
+            $response = $this->api()->get('/api/v1/bending-items', $params);
+        } catch (\Illuminate\Http\Client\ConnectionException $e) {
+            $apiError = 'API 서버에 연결할 수 없습니다. API 서비스 상태를 확인해 주세요.';
+            $response = null;
+        }
+
+        if ($response && $response->successful()) {
+            $body = $response->json('data', []);
+        } else {
+            $body = [];
+            if (! $apiError && $response) {
+                $apiError = match ($response->status()) {
+                    401 => 'API 인증이 필요합니다. SAM 서비스에 로그인하여 API를 연결해 주세요.',
+                    403 => 'API 접근 권한이 없습니다. 관리자에게 문의해 주세요.',
+                    default => "API 오류가 발생했습니다. (HTTP {$response->status()})",
+                };
+            }
+        }
+
         $data = [
             'data' => $body['data'] ?? [],
             'total' => $body['total'] ?? 0,
@@ -46,12 +65,15 @@ public function index(Request $request): View|\Illuminate\Http\Response
             'last_page' => $body['last_page'] ?? 1,
         ];
 
-        $filterResponse = $this->api()->get('/api/v1/bending-items/filters');
-        $filterOptions = $filterResponse->successful() ? $filterResponse->json('data', []) : [];
+        $filterOptions = [];
+        if (! $apiError) {
+            $filterResponse = $this->api()->get('/api/v1/bending-items/filters');
+            $filterOptions = $filterResponse->successful() ? $filterResponse->json('data', []) : [];
+        }
 
         if ($request->header('HX-Request')) {
             if ($request->header('HX-Target') === 'items-table') {
-                return view('bending.base.partials.table', ['items' => $data]);
+                return view('bending.base.partials.table', ['items' => $data, 'apiError' => $apiError]);
             }
 
             return response('', 200)->header('HX-Redirect', route('bending.base.index', $request->query()));
@@ -60,6 +82,7 @@ public function index(Request $request): View|\Illuminate\Http\Response
         return view('bending.base.index', [
             'items' => $data,
             'filterOptions' => $filterOptions,
+            'apiError' => $apiError,
         ]);
     }
 
diff --git a/app/Http/Controllers/BendingProductController.php b/app/Http/Controllers/BendingProductController.php
index 761aaf8a..60c83390 100644
--- a/app/Http/Controllers/BendingProductController.php
+++ b/app/Http/Controllers/BendingProductController.php
@@ -49,8 +49,27 @@ public function index(Request $request, string $category = 'GUIDERAIL_MODEL'): V
         $params['size'] = $params['size'] ?? 30;
         $params['item_category'] = $category;
 
-        $response = $this->api()->get('/api/v1/guiderail-models', $params);
-        $body = $response->successful() ? $response->json('data', []) : [];
+        $apiError = null;
+        try {
+            $response = $this->api()->get('/api/v1/guiderail-models', $params);
+        } catch (\Illuminate\Http\Client\ConnectionException $e) {
+            $apiError = 'API 서버에 연결할 수 없습니다. API 서비스 상태를 확인해 주세요.';
+            $response = null;
+        }
+
+        if ($response && $response->successful()) {
+            $body = $response->json('data', []);
+        } else {
+            $body = [];
+            if (! $apiError && $response) {
+                $apiError = match ($response->status()) {
+                    401 => 'API 인증이 필요합니다. SAM 서비스에 로그인하여 API를 연결해 주세요.',
+                    403 => 'API 접근 권한이 없습니다. 관리자에게 문의해 주세요.',
+                    default => "API 오류가 발생했습니다. (HTTP {$response->status()})",
+                };
+            }
+        }
+
         $data = [
             'data' => $body['data'] ?? [],
             'total' => $body['total'] ?? 0,
@@ -58,16 +77,17 @@ public function index(Request $request, string $category = 'GUIDERAIL_MODEL'): V
             'last_page' => $body['last_page'] ?? 1,
         ];
 
-        $filterResponse = $this->api()->get('/api/v1/guiderail-models/filters');
-        $filterOptions = $filterResponse->successful() ? $filterResponse->json('data', []) : [];
+        $filterOptions = [];
+        if (! $apiError) {
+            $filterResponse = $this->api()->get('/api/v1/guiderail-models/filters');
+            $filterOptions = $filterResponse->successful() ? $filterResponse->json('data', []) : [];
+        }
 
         if ($request->header('HX-Request')) {
-            // 필터/검색 HTMX (hx-target="#items-table") → 파셜 반환
             if ($request->header('HX-Target') === 'items-table') {
-                return view('bending.products.partials.table', ['items' => $data, 'config' => $config, 'category' => $category]);
+                return view('bending.products.partials.table', ['items' => $data, 'config' => $config, 'category' => $category, 'apiError' => $apiError]);
             }
 
-            // 사이드바 등 그 외 HTMX → 전체 페이지 리로드
             return response('', 200)->header('HX-Redirect', route("bending.{$config['prefix']}.index", $request->query()));
         }
 
@@ -76,6 +96,7 @@ public function index(Request $request, string $category = 'GUIDERAIL_MODEL'): V
             'filterOptions' => $filterOptions,
             'config' => $config,
             'category' => $category,
+            'apiError' => $apiError,
         ]);
     }
 
diff --git a/resources/views/bending/base/partials/table.blade.php b/resources/views/bending/base/partials/table.blade.php
index 7c19bcb4..a70655ee 100644
--- a/resources/views/bending/base/partials/table.blade.php
+++ b/resources/views/bending/base/partials/table.blade.php
@@ -84,7 +84,18 @@
             </tr>
             @empty
             <tr>
-                <td colspan="15" class="px-3 py-8 text-center text-gray-400">데이터가 없습니다.</td>
+                <td colspan="15" class="px-3 py-8 text-center">
+                    @if(!empty($apiError))
+                        <div class="text-amber-600">
+                            <svg class="w-8 h-8 mx-auto mb-2 text-amber-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-2.5L13.732 4c-.77-.833-1.964-.833-2.732 0L4.082 16.5c-.77.833.192 2.5 1.732 2.5z"/>
+                            </svg>
+                            <p class="text-sm font-medium">{{ $apiError }}</p>
+                        </div>
+                    @else
+                        <span class="text-gray-400">데이터가 없습니다.</span>
+                    @endif
+                </td>
             </tr>
             @endforelse
         </tbody>
diff --git a/resources/views/bending/products/partials/table.blade.php b/resources/views/bending/products/partials/table.blade.php
index a6d0dcfe..8534e71f 100644
--- a/resources/views/bending/products/partials/table.blade.php
+++ b/resources/views/bending/products/partials/table.blade.php
@@ -122,7 +122,18 @@ class="px-2 py-0.5 bg-gray-600 text-white rounded text-xs hover:bg-gray-700">보
             </tr>
             @empty
             <tr>
-                <td colspan="20" class="px-3 py-8 text-center text-gray-400">데이터가 없습니다.</td>
+                <td colspan="20" class="px-3 py-8 text-center">
+                    @if(!empty($apiError))
+                        <div class="text-amber-600">
+                            <svg class="w-8 h-8 mx-auto mb-2 text-amber-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-2.5L13.732 4c-.77-.833-1.964-.833-2.732 0L4.082 16.5c-.77.833.192 2.5 1.732 2.5z"/>
+                            </svg>
+                            <p class="text-sm font-medium">{{ $apiError }}</p>
+                        </div>
+                    @else
+                        <span class="text-gray-400">데이터가 없습니다.</span>
+                    @endif
+                </td>
             </tr>
             @endforelse
         </tbody>