diff --git a/main.go b/main.go
index d6cea3c..a56b734 100644
--- a/main.go
+++ b/main.go
@@ -183,6 +183,26 @@ func main() {
 				return nil
 			},
 		},
+		{
+			Name:    "block",
+			Aliases: []string{"blk"},
+			Usage:   "toyotter2 block [screenName]",
+			Flags: []cli.Flag{
+				cli.BoolFlag{
+					Name:  "delete, d",
+					Usage: "toyotter2 block [screenName] --delete",
+				},
+			},
+			Action: func(c *cli.Context) error {
+				screenName := c.Args().First()
+				if c.Bool("delete") {
+					twitter.UnBlock(api, screenName, v)
+				} else {
+					twitter.Block(api, screenName, v)
+				}
+				return nil
+			},
+		},
 		// {
 		// 	Name:  "dm",
 		// 	Usage: "toyotter2 dm [screenName] [text]",
diff --git a/twitter/block.go b/twitter/block.go
new file mode 100644
index 0000000..80ab31c
--- /dev/null
+++ b/twitter/block.go
@@ -0,0 +1,31 @@
+package twitter
+
+import (
+	"fmt"
+	"net/url"
+
+	"github.com/ChimeraCoder/anaconda"
+	"github.com/KeisukeToyota/toyotter2/modules"
+)
+
+// Block ブロック
+func Block(api *anaconda.TwitterApi, screenName string, v url.Values) {
+	user, err := api.BlockUser(screenName, v)
+
+	if err != nil {
+		modules.ErrorMessage("ブロックに失敗したよ")
+	}
+
+	fmt.Println(modules.GetFormatUser(user))
+}
+
+// UnBlock ブロック解除
+func UnBlock(api *anaconda.TwitterApi, screenName string, v url.Values) {
+	user, err := api.UnblockUser(screenName, v)
+
+	if err != nil {
+		modules.ErrorMessage("ブロック解除に失敗したよ")
+	}
+
+	fmt.Println(modules.GetFormatUser(user))
+}
diff --git a/twitter/follow.go b/twitter/follow.go
index 04521c6..557138c 100644
--- a/twitter/follow.go
+++ b/twitter/follow.go
@@ -23,7 +23,7 @@ func UnFollow(api *anaconda.TwitterApi, screenName string) {
 	user, err := api.UnfollowUser(screenName)
 
 	if err != nil {
-		modules.ErrorMessage("フォローに失敗したよ")
+		modules.ErrorMessage("フォロー解除に失敗したよ")
 	}
 
 	fmt.Println(modules.GetFormatUser(user))