diff --git a/swagger.go b/swagger.go
index a26ac4b..3a70b75 100644
--- a/swagger.go
+++ b/swagger.go
@@ -57,3 +57,17 @@ const (
 	SwaggerParameterStylePipeDelimited  = "pipeDelimited"  // in = query , type = array, 管道符`
 	SwaggerParameterStyleDeepObject     = "deepObject"     // in = query , type = object, 提供一种简单的方法来表示参数中的嵌套对象值.`
 )
+
+type SwaggerUITheme string
+
+func (sut SwaggerUITheme) String() string {
+	return string(sut)
+}
+
+const (
+	SwaggerUIThemeDefault   SwaggerUITheme = "swaggerUI"     // 文档默认主题
+	SwaggerUIThemeKnife4go  SwaggerUITheme = "knife4go"      // knife4go 主题
+	SwaggerUIThemeYDocLucky SwaggerUITheme = "ydoc-lucky-ui" // YDoc Lucky UI 主题: https://github.com/NoBugBoy/LuckyUI
+	SwaggerUIThemeRedocFree SwaggerUITheme = "redoc-free"    // redoc UI 主题, 开源免费版: https://github.com/Redocly/redoc
+	SwaggerUIThemeElements  SwaggerUITheme = "elements"      // elements 主题, 开源免费版: https://github.com/stoplightio/elements
+)