diff --git a/docs/qiniu-cloud/ansible-automation.md b/docs/qiniu-cloud/ansible-automation.md
index 6f62c46..d93a279 100644
--- a/docs/qiniu-cloud/ansible-automation.md
+++ b/docs/qiniu-cloud/ansible-automation.md
@@ -18,19 +18,19 @@ graph TD
     Root --> MySQL["mysql/"]
     Root --> PGHA["postgresql_ha/"]
 
-    MySQL --> M Deploy["deploy.yml"]
-    MySQL --> M Pre["precheck.yml"]
-    MySQL --> M Fail["failover.yml"]
-    MySQL --> M Roll["rollback.yml"]
-    MySQL --> M Conf["config-apply.yml"]
-    MySQL --> Mvars["vars/ / tasks/ / templates/ / files/"]
+    MySQL --> M_Deploy["deploy.yml"]
+    MySQL --> M_Pre["precheck.yml"]
+    MySQL --> M_Fail["failover.yml"]
+    MySQL --> M_Roll["rollback.yml"]
+    MySQL --> M_Conf["config-apply.yml"]
+    MySQL --> M_Vars["vars/ / tasks/ / templates/ / files/"]
 
-    PGHA --> P Deploy["deploy.yml"]
-    PGHA --> P Pre["preflight.yml"]
-    PGHA --> P Accept["final_acceptance.yml"]
-    PGHA --> P Switch["control-switchover.yml"]
-    PGHA --> P Restart["control-restart.yml"]
-    PGHA --> P Clean["cleanup.yml"]
+    PGHA --> P_Deploy["deploy.yml"]
+    PGHA --> P_Pre["preflight.yml"]
+    PGHA --> P_Accept["final_acceptance.yml"]
+    PGHA --> P_Switch["control-switchover.yml"]
+    PGHA --> P_Restart["control-restart.yml"]
+    PGHA --> P_Clean["cleanup.yml"]
 
     style Root fill:#e1f5fe
     style MySQL fill:#fff3e0