diff --git a/database/migrations/2025_07_24_180652_update_files_table_for_polymorphic_usage.php b/database/migrations/2025_07_24_180652_update_files_table_for_polymorphic_usage.php
new file mode 100644
index 0000000..a3b582d
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+++ b/database/migrations/2025_07_24_180652_update_files_table_for_polymorphic_usage.php
@@ -0,0 +1,32 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::table('files', function (Blueprint $table) {
+            // 기존 컬럼 제거 (target_table, target_id)
+            $table->dropColumn(['target_table', 'target_id']);
+
+            // Polymorphic 컬럼 추가
+            $table->unsignedBigInteger('fileable_id')->after('description')->comment('Polymorphic - 연결된 모델의 PK');
+            $table->string('fileable_type', 100)->after('fileable_id')->comment('Polymorphic - 연결된 모델 클래스명');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('files', function (Blueprint $table) {
+            // Polymorphic 컬럼 제거
+            $table->dropColumn(['fileable_id', 'fileable_type']);
+
+            // 다시 기존 방식으로 복원
+            $table->string('target_table', 50)->after('description')->comment('연결된 테이블명');
+            $table->unsignedBigInteger('target_id')->after('target_table')->comment('연결된 테이블의 PK ID');
+        });
+    }
+};