diff --git a/database/seeders/QuoteItemCategorySeeder.php b/database/seeders/QuoteItemCategorySeeder.php
index d8f5093..f07ec99 100644
--- a/database/seeders/QuoteItemCategorySeeder.php
+++ b/database/seeders/QuoteItemCategorySeeder.php
@@ -29,17 +29,29 @@ public function run(): void
 
         $parentIds = [];
         foreach ($parentCategories as $cat) {
-            $parentIds[$cat['code']] = DB::table('categories')->insertGetId([
-                'tenant_id' => $tenantId,
-                'parent_id' => null,
-                'code_group' => $codeGroup,
-                'code' => $cat['code'],
-                'name' => $cat['name'],
-                'sort_order' => $cat['sort_order'],
-                'is_active' => true,
-                'created_at' => $now,
-                'updated_at' => $now,
-            ]);
+            // 이미 존재하면 업데이트, 없으면 생성
+            DB::table('categories')->updateOrInsert(
+                [
+                    'tenant_id' => $tenantId,
+                    'code_group' => $codeGroup,
+                    'code' => $cat['code'],
+                ],
+                [
+                    'parent_id' => null,
+                    'name' => $cat['name'],
+                    'sort_order' => $cat['sort_order'],
+                    'is_active' => true,
+                    'updated_at' => $now,
+                    'created_at' => $now,
+                ]
+            );
+
+            // ID 조회
+            $parentIds[$cat['code']] = DB::table('categories')
+                ->where('tenant_id', $tenantId)
+                ->where('code_group', $codeGroup)
+                ->where('code', $cat['code'])
+                ->value('id');
         }
 
         // 2. 절곡품 하위 3개 중간 카테고리 추가
@@ -51,17 +63,29 @@ public function run(): void
 
         $bendingSubIds = [];
         foreach ($bendingSubCategories as $cat) {
-            $bendingSubIds[$cat['code']] = DB::table('categories')->insertGetId([
-                'tenant_id' => $tenantId,
-                'parent_id' => $parentIds['BENDING'],
-                'code_group' => $codeGroup,
-                'code' => $cat['code'],
-                'name' => $cat['name'],
-                'sort_order' => $cat['sort_order'],
-                'is_active' => true,
-                'created_at' => $now,
-                'updated_at' => $now,
-            ]);
+            // 이미 존재하면 업데이트, 없으면 생성
+            DB::table('categories')->updateOrInsert(
+                [
+                    'tenant_id' => $tenantId,
+                    'code_group' => $codeGroup,
+                    'code' => $cat['code'],
+                ],
+                [
+                    'parent_id' => $parentIds['BENDING'],
+                    'name' => $cat['name'],
+                    'sort_order' => $cat['sort_order'],
+                    'is_active' => true,
+                    'updated_at' => $now,
+                    'created_at' => $now,
+                ]
+            );
+
+            // ID 조회
+            $bendingSubIds[$cat['code']] = DB::table('categories')
+                ->where('tenant_id', $tenantId)
+                ->where('code_group', $codeGroup)
+                ->where('code', $cat['code'])
+                ->value('id');
         }
 
         // 3. 기존 세부 항목들의 parent_id 업데이트