diff --git a/docs/deploy_backup_restore_s3.md b/docs/deploy_backup_restore_s3.md
index 11fbcd8c..c0126f45 100644
--- a/docs/deploy_backup_restore_s3.md
+++ b/docs/deploy_backup_restore_s3.md
@@ -33,7 +33,7 @@ then, create the secret in k8s.
 ```
 kubectl create -f config/samples/backup_secret.yaml
 ```
-Please add the backupSecretName in mysql_v1apha1_cluster.yaml, name as secret file:
+Please add the backupSecretName in mysql_v1apha1_mysqlcluster.yaml, name as secret file:
 ```yaml
 spec:
   replicas: 3
@@ -62,7 +62,7 @@ spec:
 ### start cluster
 
 ```shell
-kubectl apply -f config/samples/mysql_v1alpha1_cluster.yaml     
+kubectl apply -f config/samples/mysql_v1alpha1_mysqlcluster.yaml     
 ```
 ### start backup
 After run cluster success
@@ -75,7 +75,7 @@ kubectl apply -f config/samples/mysql_v1alpha1_backup.yaml
 Uninstall the cluster named `sample`:
 
 ```shell
-kubectl delete clusters.mysql.radondb.com sample
+kubectl delete mysqlclusters.mysql.radondb.com sample
 ```
 
 Uninstall the operator name `test`:
@@ -88,7 +88,7 @@ kubectl delete -f config/samples/mysql_v1alpha1_backup.yaml
 Uninstall the crd:
 
 ```shell
-kubectl delete customresourcedefinitions.apiextensions.k8s.io clusters.mysql.radondb.com
+kubectl delete customresourcedefinitions.apiextensions.k8s.io mysqlclusters.mysql.radondb.com
 ```
 
 
@@ -106,7 +106,7 @@ spec:
 ```
 Then you use:
 ```shell
-kubectl apply -f config/samples/mysql_v1alpha1_cluster.yaml     
+kubectl apply -f config/samples/mysql_v1alpha1_mysqlcluster.yaml     
 ```
 could restore a cluster from the `backup_2021720827 ` copy in the S3 bucket. 
 
diff --git a/docs/deploy_monitoring.md b/docs/deploy_monitoring.md
index 06c1b3b7..711e4bae 100644
--- a/docs/deploy_monitoring.md
+++ b/docs/deploy_monitoring.md
@@ -63,7 +63,7 @@ serviceMonitor:
 
 ### 步骤 2: 配置 metricsOpts
 
-`metricsOpts` 是 CRD  `clusters.mysql.radondb.com` 中定义 RadonDB MySQL 集群监控的参数，可通过配置`mysql_v1alpha1_cluster.yaml` 文件中参数值开启监控服务。
+`metricsOpts` 是 CRD  `mysqlclusters.mysql.radondb.com` 中定义 RadonDB MySQL 集群监控的参数，可通过配置`mysql_v1alpha1_mysqlcluster.yaml` 文件中参数值开启监控服务。
 
 `metricsOpts` 参数包含如下字段：
 
@@ -89,7 +89,7 @@ metricsOpts:
 文件参数修改完成后，使用如下指令应用配置，部署/更新集群回显信息如下：
 
 ```bash
-$ kubectl apply -f config/sample/mysql_v1alpha1_cluster.yaml
+$ kubectl apply -f config/sample/mysql_v1alpha1_mysqlcluster.yaml
 cluster.mysql.radondb.com/sample created/configured
 ```
 
diff --git a/docs/kubernetes/deploy_radondb-mysql_operator_on_k8s.md b/docs/kubernetes/deploy_radondb-mysql_operator_on_k8s.md
index b1eea66f..b303a6ed 100644
--- a/docs/kubernetes/deploy_radondb-mysql_operator_on_k8s.md
+++ b/docs/kubernetes/deploy_radondb-mysql_operator_on_k8s.md
@@ -60,14 +60,14 @@ helm install [NAME] [CHART] [flags]
 helm install demo radondb-mysql-kubernetes/charts/mysql-operator
 ```
 
-> 说明：在这一步骤中默认将同时创建一个名为 `clusters.mysql.radondb.com` 的 [CRD](#8-CRD)。
+> 说明：在这一步骤中默认将同时创建一个名为 `mysqlclusters.mysql.radondb.com` 的 [CRD](#8-CRD)。
 
 ### 步骤 3: 部署 RadonDB MySQL 集群
 
-执行以下指令，以默认参数为 CRD `clusters.mysql.radondb.com` 创建一个实例，即创建 RadonDB MySQL 集群。您可以参照[配置](#配置)自定义集群部署参数。
+执行以下指令，以默认参数为 CRD `mysqlclusters.mysql.radondb.com` 创建一个实例，即创建 RadonDB MySQL 集群。您可以参照[配置](#配置)自定义集群部署参数。
 
 ```kubectl
-kubectl apply -f radondb-mysql-kubernetes/config/samples/mysql_v1alpha1_cluster.yaml
+kubectl apply -f radondb-mysql-kubernetes/config/samples/mysql_v1alpha1_mysqlcluster.yaml
 ```
 
 ## 部署校验
@@ -88,12 +88,12 @@ service/mysql-operator-metrics   ClusterIP   10.96.142.22    <none>        8443/
 
 ### 校验 RadonDB MySQL 集群
 
-执行如下命令，将查看到名为 `clusters.mysql.radondb.com` 的 CRD。
+执行如下命令，将查看到名为 `mysqlclusters.mysql.radondb.com` 的 CRD。
 
 ```shell
 kubectl get crd
 NAME                                                  CREATED AT
-clusters.mysql.radondb.com                            2021-06-29T02:28:36Z
+mysqlclusters.mysql.radondb.com                            2021-06-29T02:28:36Z
 ```
 
 以默认部署为例，执行如下命令将查看到名为 `sample-mysql` 的三节点 RadonDB MySQL 集群及用于访问节点的服务。
@@ -187,13 +187,13 @@ helm delete demo
 卸载 release 名为 `sample` RadonDB MySQL 集群。
 
 ```shell
-kubectl delete clusters.mysql.radondb.com sample
+kubectl delete mysqlclusters.mysql.radondb.com sample
 ```
 
 ### 卸载自定义资源
 
 ```shell
-kubectl delete customresourcedefinitions.apiextensions.k8s.io clusters.mysql.radondb.com
+kubectl delete customresourcedefinitions.apiextensions.k8s.io mysqlclusters.mysql.radondb.com
 ```
 
 ## 配置