diff --git a/README.md b/README.md
index 267ac0f..19fefcd 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ There's some library in Go support you to create your Minecraft client or server
 - [x] Minecraft network protocal
 - [x] Parse chat message
 - [x] Simple MC robot lib
-- [ ] Parse NBT
+- [x] Parse NBT
 
 Some examples are at `/cmd` folder.  
 有一些例子在cmd目录下
diff --git a/nbt/README.md b/nbt/README.md
new file mode 100644
index 0000000..dffb956
--- /dev/null
+++ b/nbt/README.md
@@ -0,0 +1,2 @@
+# NBT
+This package implement the Named Binary Tag format of Minecraft.
\ No newline at end of file