diff --git a/beike/Installer/Controllers/DatabaseController.php b/beike/Installer/Controllers/DatabaseController.php
index 5ada26ba..deb7965d 100644
--- a/beike/Installer/Controllers/DatabaseController.php
+++ b/beike/Installer/Controllers/DatabaseController.php
@@ -5,6 +5,7 @@ namespace Beike\Installer\Controllers;
 use Beike\Admin\Repositories\AdminUserRepo;
 use Illuminate\Routing\Controller;
 use Beike\Installer\Helpers\DatabaseManager;
+use Illuminate\Support\Facades\DB;
 
 class DatabaseController extends Controller
 {
@@ -28,6 +29,14 @@ class DatabaseController extends Controller
      */
     public function index()
     {
+        DB::statement("SET FOREIGN_KEY_CHECKS = 0");
+        $rows = DB::select('SHOW TABLES');
+        $tables = array_column($rows, 'Tables_in_'.env('DB_DATABASE'));
+        foreach ($tables as $table) {
+            Schema::drop($table);
+        }
+        DB::statement("SET FOREIGN_KEY_CHECKS = 1");
+
         $response = $this->databaseManager->migrateAndSeed();
 
         $email = request('admin_email');
diff --git a/beike/Installer/Helpers/EnvironmentManager.php b/beike/Installer/Helpers/EnvironmentManager.php
index 0827a309..03c42ceb 100644
--- a/beike/Installer/Helpers/EnvironmentManager.php
+++ b/beike/Installer/Helpers/EnvironmentManager.php
@@ -98,7 +98,7 @@ class EnvironmentManager
         'APP_NAME=\''.$request->app_name."'\n".
         'APP_ENV='.$request->environment."\n".
         'APP_KEY='.'base64:'.base64_encode(Str::random(32))."\n".
-        'APP_DEBUG=false'."\n".
+        'APP_DEBUG=true'."\n".
         'APP_LOG_LEVEL='.$request->app_log_level."\n".
         'APP_URL='.$request->app_url."\n\n".
         'DB_CONNECTION='.$request->database_connection."\n".