diff --git a/README.md b/README.md
index ae59b27..e5fd8c6 100644
--- a/README.md
+++ b/README.md
@@ -81,6 +81,10 @@ $ GO111MODULE=on GOPROXY=https://goproxy.cn/,direct go get -u github.com/zeromic
     ```shell script
     $ goctl api plugin -plugin goctl-swagger="swagger -filename user.json" -api user.api -dir .
     ```
+* 指定Host，basePath [api-host-and-base-path](https://swagger.io/docs/specification/2-0/api-host-and-base-path/)
+    ```shell script
+    $ goctl api plugin -plugin goctl-swagger="swagger -filename user.json -host 127.0.0.2 -basepath /api" -api user.api -dir .
+    ```
 * swagger ui 查看生成的文档
     ```shell script
      $ docker run --rm -p 8083:8080 -e SWAGGER_JSON=/foo/user.json -v $PWD:/foo swaggerapi/swagger-ui
diff --git a/action/action.go b/action/action.go
index 7c95766..59e7a5c 100644
--- a/action/action.go
+++ b/action/action.go
@@ -7,7 +7,6 @@ import (
 )
 
 func Generator(ctx *cli.Context) error {
-
 	fileName := ctx.String("filename")
 
 	if len(fileName) == 0 {
@@ -18,5 +17,7 @@ func Generator(ctx *cli.Context) error {
 	if err != nil {
 		return err
 	}
-	return generate.Do(fileName, p)
+	basepath := ctx.String("basepath")
+	host := ctx.String("host")
+	return generate.Do(fileName, host, basepath, p)
 }
diff --git a/generate/generate.go b/generate/generate.go
index eba08fa..488ba9f 100644
--- a/generate/generate.go
+++ b/generate/generate.go
@@ -9,9 +9,8 @@ import (
 	plugin2 "github.com/tal-tech/go-zero/tools/goctl/plugin"
 )
 
-func Do(filename string, in *plugin2.Plugin) error {
-
-	swagger, err := applyGenerate(in)
+func Do(filename string, host string, basePath string, in *plugin2.Plugin) error {
+	swagger, err := applyGenerate(in, host, basePath)
 	if err != nil {
 		fmt.Println(err)
 	}
diff --git a/generate/parser.go b/generate/parser.go
index f12504f..974664a 100644
--- a/generate/parser.go
+++ b/generate/parser.go
@@ -13,9 +13,7 @@ import (
 	plugin2 "github.com/tal-tech/go-zero/tools/goctl/plugin"
 )
 
-var (
-	strColon = []byte(":")
-)
+var strColon = []byte(":")
 
 const (
 	defaultOption   = "default"
@@ -27,8 +25,7 @@ const (
 	equalToken      = "="
 )
 
-func applyGenerate(p *plugin2.Plugin) (*swaggerObject, error) {
-
+func applyGenerate(p *plugin2.Plugin, host string, basePath string) (*swaggerObject, error) {
 	title, _ := strconv.Unquote(p.Api.Info.Properties["title"])
 	version, _ := strconv.Unquote(p.Api.Info.Properties["version"])
 	desc, _ := strconv.Unquote(p.Api.Info.Properties["desc"])
@@ -47,6 +44,12 @@ func applyGenerate(p *plugin2.Plugin) (*swaggerObject, error) {
 			Description: desc,
 		},
 	}
+	if len(host) > 0 {
+		s.Host = host
+	}
+	if len(basePath) > 0 {
+		s.BasePath = basePath
+	}
 
 	s.SecurityDefinitions = swaggerSecurityDefinitionsObject{}
 	newSecDefValue := swaggerSecuritySchemeObject{}
@@ -66,9 +69,7 @@ func applyGenerate(p *plugin2.Plugin) (*swaggerObject, error) {
 }
 
 func renderServiceRoutes(service spec.Service, groups []spec.Group, paths swaggerPathsObject, requestResponseRefs refMap) {
-
 	for _, group := range groups {
-
 		for _, route := range group.Routes {
 			path := route.Path
 			parameters := swaggerParametersObject{}
@@ -126,13 +127,12 @@ func renderServiceRoutes(service spec.Service, groups []spec.Group, paths swagge
 
 						parameters = append(parameters, sp)
 					}
-
 				} else {
 
 					reqRef := fmt.Sprintf("#/definitions/%s", route.RequestType.Name())
 
 					if len(route.RequestType.Name()) > 0 {
-						var schema = swaggerSchemaObject{
+						schema := swaggerSchemaObject{
 							schemaCore: schemaCore{
 								Ref: reqRef,
 							},
@@ -204,7 +204,6 @@ func renderServiceRoutes(service spec.Service, groups []spec.Group, paths swagge
 			paths[path] = pathItemObject
 		}
 	}
-
 }
 
 func renderReplyAsDefinition(d swaggerDefinitionsObject, m messageMap, p []spec.Type, refs refMap) {
@@ -249,14 +248,13 @@ func renderReplyAsDefinition(d swaggerDefinitionsObject, m messageMap, p []spec.
 
 		d[i2.Name()] = schema
 	}
-
 }
 
 func schemaOfField(member spec.Member) swaggerSchemaObject {
 	ret := swaggerSchemaObject{}
 
 	var core schemaCore
-	//spew.Dump(member)
+	// spew.Dump(member)
 	kind := swaggerMapTypes[member.Type.Name()]
 	var props *swaggerSchemaObjectProperties
 
@@ -266,7 +264,7 @@ func schemaOfField(member spec.Member) swaggerSchemaObject {
 	switch ft := kind; ft {
 	case reflect.Invalid: //[]Struct 也有可能是 Struct
 		// []Struct
-		//map[ArrayType:map[Star:map[StringExpr:UserSearchReq] StringExpr:*UserSearchReq] StringExpr:[]*UserSearchReq]
+		// map[ArrayType:map[Star:map[StringExpr:UserSearchReq] StringExpr:*UserSearchReq] StringExpr:[]*UserSearchReq]
 		refTypeName := strings.Replace(member.Type.Name(), "[", "", 1)
 		refTypeName = strings.Replace(refTypeName, "]", "", 1)
 		refTypeName = strings.Replace(refTypeName, "*", "", 1)
@@ -380,6 +378,7 @@ func countParams(path string) uint16 {
 	n += uint16(bytes.Count(s, strColon))
 	return n
 }
+
 func contains(s []string, str string) bool {
 	for _, v := range s {
 		if v == str {
diff --git a/main.go b/main.go
index 0daba23..6f5dd9c 100644
--- a/main.go
+++ b/main.go
@@ -2,10 +2,11 @@ package main
 
 import (
 	"fmt"
-	"github.com/urfave/cli/v2"
-	"github.com/zeromicro/goctl-swagger/action"
 	"os"
 	"runtime"
+
+	"github.com/urfave/cli/v2"
+	"github.com/zeromicro/goctl-swagger/action"
 )
 
 var (
@@ -16,6 +17,14 @@ var (
 			Usage:  "generates swagger.json",
 			Action: action.Generator,
 			Flags: []cli.Flag{
+				&cli.StringFlag{
+					Name:  "host",
+					Usage: "api request address",
+				},
+				&cli.StringFlag{
+					Name:  "basepath",
+					Usage: "url request prefix",
+				},
 				&cli.StringFlag{
 					Name:  "filename",
 					Usage: "swagger save file name",
@@ -26,7 +35,6 @@ var (
 )
 
 func main() {
-
 	app := cli.NewApp()
 	app.Usage = "a plugin of goctl to generate swagger.json"
 	app.Version = fmt.Sprintf("%s %s/%s", version, runtime.GOOS, runtime.GOARCH)