diff --git a/conf/tidb.yml b/conf/tidb.yml
index dfb0d9aa6..de4b02832 100644
--- a/conf/tidb.yml
+++ b/conf/tidb.yml
@@ -48,6 +48,12 @@ global:
   # the data type of its primary key column is an integer, the primary key cannot be dropped.
   # alter-primary-key: false
 
+  # server-version is used to change the version string of TiDB in the following scenarios:
+  # 1. the server version returned by builtin-function `VERSION()`.
+  # 2. the server version filled in handshake packets of MySQL Connection Protocol, see https://dev.mysql.com/doc/internals/en/connection-phase-packets.html#packet-Protocol::Handshake for more details.
+  # if server-version = "", the default value(original TiDB version string) is used.
+  server-version: ""
+
 log:
   # Log level: debug, info, warn, error, fatal.
   # level: "info"
diff --git a/roles/tidb/vars/default.yml b/roles/tidb/vars/default.yml
index 6234d467c..eec915cf6 100644
--- a/roles/tidb/vars/default.yml
+++ b/roles/tidb/vars/default.yml
@@ -60,6 +60,12 @@ global:
   # the data type of its primary key column is an integer, the primary key cannot be dropped.
   alter-primary-key: false
 
+  # server-version is used to change the version string of TiDB in the following scenarios:
+  # 1. the server version returned by builtin-function `VERSION()`.
+  # 2. the server version filled in handshake packets of MySQL Connection Protocol, see https://dev.mysql.com/doc/internals/en/connection-phase-packets.html#packet-Protocol::Handshake for more details.
+  # if server-version = "", the default value(original TiDB version string) is used.
+  server-version: ""
+
 log:
   # Log level: debug, info, warn, error, fatal.
   level: "info"