diff --git a/src/docs/asciidoc/images/protocol-buffers-serialization.png b/src/docs/asciidoc/images/protocol-buffers-serialization.png
new file mode 100644
index 0000000..5c84745
Binary files /dev/null and b/src/docs/asciidoc/images/protocol-buffers-serialization.png differ
diff --git a/src/docs/asciidoc/index.adoc b/src/docs/asciidoc/index.adoc
index 9d1a6cc..95c9530 100644
--- a/src/docs/asciidoc/index.adoc
+++ b/src/docs/asciidoc/index.adoc
@@ -31,3 +31,4 @@ Protocol Buffers 是一种轻便高效的结构化数据存储格式，可以用
 我们才考虑到了 Protocol Buffer 提供的功能。
 
 
+image::protocol-buffers-serialization.png[]