diff --git a/README.md b/README.md
index 6fa3553..b4ba199 100644
--- a/README.md
+++ b/README.md
@@ -7,9 +7,116 @@ hhth
 
 hhth is httpHandler test helper library of the golang.
 
+## Install
+
+```
+go get github.com/kyokomi/hhth
+```
+
+## Example
+
+### Handler
+
+```
+package example
+
+import "net/http"
+
+func init() {
+	http.HandleFunc("/hoge", hogeHandler)
+	http.HandleFunc("/hoge.json", hogeJSONHandler)
+}
+
+func hogeHandler(w http.ResponseWriter, r *http.Request) {
+	if r.Method != "GET" {
+		w.WriteHeader(http.StatusMethodNotAllowed)
+		w.Write([]byte(http.StatusText(http.StatusMethodNotAllowed)))
+		return
+	}
+
+	w.WriteHeader(http.StatusOK)
+	w.Header().Add("Content-Type", "text/plain; charset=utf-8")
+	w.Write([]byte("hoge"))
+}
+
+func hogeJSONHandler(w http.ResponseWriter, r *http.Request) {
+	if r.Method != "GET" {
+		w.WriteHeader(http.StatusMethodNotAllowed)
+		w.Write([]byte(http.StatusText(http.StatusMethodNotAllowed)))
+		return
+	}
+
+	w.WriteHeader(http.StatusOK)
+	w.Header().Add("Content-Type", "application/json; charset=UTF-8")
+	w.Write([]byte(`{"name": "hoge", "age": 20}`))
+}
+```
+
+### Get Test
+
+```
+package example_test
+
+import (
+	"net/http"
+	"testing"
+
+	"github.com/kyokomi/hhth"
+)
+
+func TestHogeHandler(t *testing.T) {
+	hhtHelper := hhth.New(http.DefaultServeMux)
+
+	resp := hhtHelper.Get("/hoge",
+		hhth.TestCaseStatusCode(http.StatusOK),
+		hhth.TestCaseContentType("text/plain; charset=utf-8"),
+	)
+	if resp.Error() != nil {
+		t.Errorf("error %s", resp.Error())
+	}
+	if resp.String() != "hoge" {
+		t.Errorf("error response body hoge != %s", resp.String())
+	}
+}
+```
+
+### JSON Parse
+
+```
+package example_test
+
+import (
+	"net/http"
+	"testing"
+
+	"github.com/kyokomi/hhth"
+)
+
+func TestJSONParse(t *testing.T) {
+	hhtHelper := hhth.New(http.DefaultServeMux)
+
+	var resp map[string]interface{}
+	if err := hhtHelper.Get("/hoge.json",
+		hhth.TestCaseStatusCode(http.StatusOK),
+		hhth.TestCaseContentType("application/json; charset=UTF-8"),
+	).JSON(&resp); err != nil {
+		t.Errorf("error %s", err)
+	}
+
+	if resp["name"].(string) != "hoge" {
+		t.Errorf("error json response name != %s", resp["name"])
+	}
+
+	if resp["age"].(float64) != 20 {
+		t.Errorf("error json response age != %s", resp["age"])
+	}
+}
+```
+
 ## TODO
 
 - [x] test
+- [x] example
 - [x] POST
 - [ ] PUT
 - [ ] DELETE
diff --git a/example/example.go b/example/example.go
new file mode 100644
index 0000000..a10b74a
--- /dev/null
+++ b/example/example.go
@@ -0,0 +1,32 @@
+package example
+
+import "net/http"
+
+func init() {
+	http.HandleFunc("/hoge", hogeHandler)
+	http.HandleFunc("/hoge.json", hogeJSONHandler)
+}
+
+func hogeHandler(w http.ResponseWriter, r *http.Request) {
+	if r.Method != "GET" {
+		w.WriteHeader(http.StatusMethodNotAllowed)
+		w.Write([]byte(http.StatusText(http.StatusMethodNotAllowed)))
+		return
+	}
+
+	w.WriteHeader(http.StatusOK)
+	w.Header().Add("Content-Type", "text/plain; charset=utf-8")
+	w.Write([]byte("hoge"))
+}
+
+func hogeJSONHandler(w http.ResponseWriter, r *http.Request) {
+	if r.Method != "GET" {
+		w.WriteHeader(http.StatusMethodNotAllowed)
+		w.Write([]byte(http.StatusText(http.StatusMethodNotAllowed)))
+		return
+	}
+
+	w.WriteHeader(http.StatusOK)
+	w.Header().Add("Content-Type", "application/json; charset=UTF-8")
+	w.Write([]byte(`{"name": "hoge", "age": 20}`))
+}
diff --git a/example/example_test.go b/example/example_test.go
new file mode 100644
index 0000000..bb13396
--- /dev/null
+++ b/example/example_test.go
@@ -0,0 +1,43 @@
+package example_test
+
+import (
+	"net/http"
+	"testing"
+
+	"github.com/kyokomi/hhth"
+)
+
+func TestHogeHandler(t *testing.T) {
+	hhtHelper := hhth.New(http.DefaultServeMux)
+
+	resp := hhtHelper.Get("/hoge",
+		hhth.TestCaseStatusCode(http.StatusOK),
+		hhth.TestCaseContentType("text/plain; charset=utf-8"),
+	)
+	if resp.Error() != nil {
+		t.Errorf("error %s", resp.Error())
+	}
+	if resp.String() != "hoge" {
+		t.Errorf("error response body hoge != %s", resp.String())
+	}
+}
+
+func TestJSONParse(t *testing.T) {
+	hhtHelper := hhth.New(http.DefaultServeMux)
+
+	var resp map[string]interface{}
+	if err := hhtHelper.Get("/hoge.json",
+		hhth.TestCaseStatusCode(http.StatusOK),
+		hhth.TestCaseContentType("application/json; charset=UTF-8"),
+	).JSON(&resp); err != nil {
+		t.Errorf("error %s", err)
+	}
+
+	if resp["name"].(string) != "hoge" {
+		t.Errorf("error json response name != %s", resp["name"])
+	}
+
+	if resp["age"].(float64) != 20 {
+		t.Errorf("error json response age != %s", resp["age"])
+	}
+}
diff --git a/hhth_test.go b/hhth_test.go
index 110b340..fd325fb 100644
--- a/hhth_test.go
+++ b/hhth_test.go
@@ -256,5 +256,5 @@ func postHandler(w http.ResponseWriter, r *http.Request) {
 
 func renderError(statusCode int, w http.ResponseWriter) {
 	w.WriteHeader(statusCode)
-	w.Write([]byte(http.StatusText(http.StatusMethodNotAllowed)))
+	w.Write([]byte(http.StatusText(statusCode)))
 }