diff --git a/goroutine/README.md b/goroutine/README.md
new file mode 100644
index 0000000..c0eafde
--- /dev/null
+++ b/goroutine/README.md
@@ -0,0 +1,3 @@
+## MEMO
+
+- 最初に呼び出されるgoroutineはmain goroutine
diff --git a/goroutine/goroutine.go b/goroutine/goroutine.go
new file mode 100644
index 0000000..852ba42
--- /dev/null
+++ b/goroutine/goroutine.go
@@ -0,0 +1,18 @@
+package main
+
+import (
+	"fmt"
+	"time"
+)
+
+func hoge() {
+	for i := 0; i < 10; i++ {
+		fmt.Println(i)
+		time.Sleep(1 * time.Second)
+	}
+}
+
+func main() {
+	go hoge()
+	time.Sleep(3 * time.Second)
+}