diff --git a/docs/book.json b/docs/book.json
deleted file mode 100644
index a4bfa3157..000000000
--- a/docs/book.json
+++ /dev/null
@@ -1,10 +0,0 @@
-{
-  "root": "./docs",
-  "title": "Apache SkyWalking 6 Documents",
-  "links": {
-    "sidebar" : {
-      "Home": "http://skywalking.apache.org/",
-      "GitHub": "https://github.com/apache/incubator-skywalking"
-    }
-  }
-}
\ No newline at end of file