diff --git a/application/admin/command/Install.php b/application/admin/command/Install.php
index 835269dea4ff118a356e850b2368f5600c21c7da..5a36ab1972ab6f1f9dbc083662d28ec78e6f800a 100644
--- a/application/admin/command/Install.php
+++ b/application/admin/command/Install.php
@@ -215,6 +215,21 @@ class Install extends Command
             throw new Exception(__('The current permissions are insufficient to write the file %s', 'application/database.php'));
         }
 
+        // 生成Env配置文件
+        $envFile  = ROOT_PATH . '.env.sample';
+        $envStr   = @file_get_contents($envFile);
+        $callback = function ($matches) use ($mysqlHostname, $mysqlHostport, $mysqlUsername, $mysqlPassword, $mysqlDatabase, $mysqlPrefix) {
+            $field   = "mysql" . ucfirst($matches[1]);
+            $replace = $$field;
+            return "{$matches[1]} = {$replace}" . PHP_EOL;
+        };
+        $envConf  = preg_replace_callback('/(hostname|database|username|password|hostport|prefix)\s*=\s*(.*?)\n/', $callback, $envStr);
+
+        $result = @file_put_contents(ROOT_PATH . '.env', $envConf);
+        if (!$result) {
+            throw new Exception(__('The current permissions are insufficient to write the file %s', '.env'));
+        }
+
         // 变更默认管理员密码
         $adminPassword = $adminPassword ? $adminPassword : Random::alnum(8);
         $adminEmail = $adminEmail ? $adminEmail : "admin@admin.com";