diff --git a/swagger.go b/swagger.go
index dfbc77f..1d24f72 100644
--- a/swagger.go
+++ b/swagger.go
@@ -16,17 +16,18 @@ var WrapHandler = Handler()
 // Config stores httpSwagger configuration variables.
 type Config struct {
 	// The url pointing to API definition (normally swagger.json or swagger.yaml). Default is `doc.json`.
-	URL                  string
-	DocExpansion         string
-	DomID                string
-	InstanceName         string
-	BeforeScript         template.JS
-	AfterScript          template.JS
-	Plugins              []template.JS
-	UIConfig             map[template.JS]template.JS
-	DeepLinking          bool
-	PersistAuthorization bool
-	Layout               SwaggerLayout
+	URL                      string
+	DocExpansion             string
+	DomID                    string
+	InstanceName             string
+	BeforeScript             template.JS
+	AfterScript              template.JS
+	Plugins                  []template.JS
+	UIConfig                 map[template.JS]template.JS
+	DeepLinking              bool
+	PersistAuthorization     bool
+	Layout                   SwaggerLayout
+	DefaultModelsExpandDepth ModelsExpandDepthType
 }
 
 // URL presents the url pointing to API definition (normally swagger.json or swagger.yaml).
@@ -124,15 +125,31 @@ func Layout(layout SwaggerLayout) func(*Config) {
 	}
 }
 
+type ModelsExpandDepthType int
+
+const (
+	ShowModel ModelsExpandDepthType = 1
+	HideModel ModelsExpandDepthType = -1
+)
+
+// DefaultModelsExpandDepth presents the model of response and request.
+// set the default expansion depth for models
+func DefaultModelsExpandDepth(defaultModelsExpandDepth ModelsExpandDepthType) func(*Config) {
+	return func(c *Config) {
+		c.DefaultModelsExpandDepth = defaultModelsExpandDepth
+	}
+}
+
 func newConfig(configFns ...func(*Config)) *Config {
 	config := Config{
-		URL:                  "doc.json",
-		DocExpansion:         "list",
-		DomID:                "swagger-ui",
-		InstanceName:         "swagger",
-		DeepLinking:          true,
-		PersistAuthorization: false,
-		Layout:               StandaloneLayout,
+		URL:                      "doc.json",
+		DocExpansion:             "list",
+		DomID:                    "swagger-ui",
+		InstanceName:             "swagger",
+		DeepLinking:              true,
+		PersistAuthorization:     false,
+		Layout:                   StandaloneLayout,
+		DefaultModelsExpandDepth: ShowModel,
 	}
 
 	for _, fn := range configFns {
@@ -296,7 +313,8 @@ window.onload = function() {
     {{- range $k, $v := .UIConfig}}
     {{$k}}: {{$v}},
     {{- end}}
-    layout: "{{$.Layout}}"
+    layout: "{{$.Layout}}",
+    defaultModelsExpandDepth: {{.DefaultModelsExpandDepth}}
   })
 
   window.ui = ui
diff --git a/swagger_test.go b/swagger_test.go
index e9fd9a8..f7941b1 100644
--- a/swagger_test.go
+++ b/swagger_test.go
@@ -377,12 +377,13 @@ func TestUIConfigOptions(t *testing.T) {
 		{
 			desc: "default configuration",
 			cfg: &Config{
-				URL:                  "doc.json",
-				DeepLinking:          true,
-				DocExpansion:         "list",
-				DomID:                "swagger-ui",
-				PersistAuthorization: false,
-				Layout:               StandaloneLayout,
+				URL:                      "doc.json",
+				DeepLinking:              true,
+				DocExpansion:             "list",
+				DomID:                    "swagger-ui",
+				PersistAuthorization:     false,
+				Layout:                   StandaloneLayout,
+				DefaultModelsExpandDepth: ShowModel,
 			},
 			exp: `window.onload = function() {
   
@@ -400,7 +401,8 @@ func TestUIConfigOptions(t *testing.T) {
     plugins: [
       SwaggerUIBundle.plugins.DownloadUrl
     ],
-    layout: "StandaloneLayout"
+    layout: "StandaloneLayout",
+    defaultModelsExpandDepth:  1 
   })
 
   window.ui = ui
@@ -432,6 +434,7 @@ func TestUIConfigOptions(t *testing.T) {
 					"onComplete":            `() => { window.ui.setBasePath('v3'); }`,
 					"defaultModelRendering": `"model"`,
 				},
+				DefaultModelsExpandDepth: HideModel,
 			},
 			exp: `window.onload = function() {
   const SomePlugin = (system) => ({
@@ -458,7 +461,8 @@ func TestUIConfigOptions(t *testing.T) {
     defaultModelRendering: "model",
     onComplete: () => { window.ui.setBasePath('v3'); },
     showExtensions: true,
-    layout: "StandaloneLayout"
+    layout: "StandaloneLayout",
+    defaultModelsExpandDepth:  -1 
   })
 
   window.ui = ui
@@ -537,3 +541,17 @@ func TestUIConfigOptions(t *testing.T) {
 		})
 	}
 }
+
+func TestDefaultModelsExpandDepth(t *testing.T) {
+	cfg := newConfig()
+	// Default value
+	assert.Equal(t, ShowModel, cfg.DefaultModelsExpandDepth)
+
+	// Set hide
+	DefaultModelsExpandDepth(HideModel)(cfg)
+	assert.Equal(t, HideModel, cfg.DefaultModelsExpandDepth)
+
+	// Set show
+	DefaultModelsExpandDepth(ShowModel)(cfg)
+	assert.Equal(t, ShowModel, cfg.DefaultModelsExpandDepth)
+}