diff --git a/README.md b/README.md
index 46ab882..af18cfa 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# kubeasz
+# kubeasz - Ansible Spirit Zone In Kubernetes
 
 `kubeasz`致力于提供快速部署高可用`k8s`集群的工具, 并且也努力成为`k8s`实践、使用的参考书；基于二进制方式部署和利用`ansible-playbook`实现自动化：即提供一键安装脚本, 也可以分步执行安装各个组件, 同时讲解每一步主要参数配置和注意事项。
 
@@ -56,7 +56,7 @@
         <td><a href="docs/op/AddNode.md">增加node节点</a></td>
         <td><a href="docs/op/AddMaster.md">增加master节点</a></td>
         <td><a href="docs/op/op-etcd.md">管理etcd集群</a></td>
-        <td><a href="docs/op/del_one_node.md">删除节点</a></td>
+        <td><a href="docs/op/clean_one_node.md">删除节点</a></td>
         <td><a href="docs/op/upgrade.md">升级集群</a></td>
         <td><a href="docs/op/cluster_restore.md">备份恢复</a></td>
     </tr>
diff --git a/docs/op/del_one_node.md b/docs/op/clean_one_node.md
similarity index 100%
rename from docs/op/del_one_node.md
rename to docs/op/clean_one_node.md
diff --git a/docs/op/op-index.md b/docs/op/op-index.md
index b0095bb..dce778e 100644
--- a/docs/op/op-index.md
+++ b/docs/op/op-index.md
@@ -6,7 +6,7 @@
 - [升级 K8S 版本](upgrade.md)
 - [修改多主集群VIP地址](ChangeVIP.md)
 - [修改AIO部署的系统IP](change_ip_allinone.md)
-- [集群删除单个节点](del_one_node.md)
+- [集群删除单个节点](clean_one_node.md)
 - [替换集群使用的网络插件](change_k8s_network.md)
 - [集群备份与恢复](cluster_restore.md)
 - [设置只读权限 kubeconfig](readonly_kubectl.md)
diff --git a/roles/prepare/tasks/main.yml b/roles/prepare/tasks/main.yml
index 93acc25..99937bd 100644
--- a/roles/prepare/tasks/main.yml
+++ b/roles/prepare/tasks/main.yml
@@ -21,6 +21,9 @@
   - cfssl-certinfo
   - cfssljson
 
+- name: 分发 easzctl 工具
+  copy: src={{ base_dir }}/tools/easzctl dest={{ bin_dir }}/easzctl mode=0755
+
 - name: 写入环境变量$PATH 
   lineinfile:
     dest: ~/.bashrc
diff --git a/tools/clean_one_node.yml b/tools/clean_one_node.yml
index 8a1f41c..3099e3b 100644
--- a/tools/clean_one_node.yml
+++ b/tools/clean_one_node.yml
@@ -1,4 +1,4 @@
-# 警告：此脚本将清理单个node节点，使用请详细参阅 docs/op/del_one_node.md
+# 警告：此脚本将清理单个node节点，使用请详细参阅 docs/op/clean_one_node.md
 # 请三思后运行此脚本，特别的：如果有pod使用了本地存储类型，请自行判断重要性
 # 使用：
 # 1. 执行 ansible-playbook /etc/ansible/tools/clean_one_node.yml
diff --git a/tools/easzctl b/tools/easzctl
index 55adc92..af282b8 100755
--- a/tools/easzctl
+++ b/tools/easzctl
@@ -8,7 +8,7 @@ set -o nounset
 
 function usage() {
     cat <<EOF
-Usage: easzctl COMMAND [args]
+Usage: easzctl COMMAND <args>
 Commands:
     add-node		To add a kube-node(work node) to the k8s cluster
     add-master		To add a kube-master(master node) to the k8s cluster
@@ -22,7 +22,7 @@ EOF
 }
 
 function process_cmd() {
-    echo -e "$ACTION : $CMD"
+    echo -e "+---\033[33m$ACTION\033[0m---+ : $CMD"
     $CMD || { echo -e "+---\033[31mAction failed\033[0m---+ : $CMD"; exit 1; }
     echo -e "+---\033[32mAction successed\033[0m---+ : $CMD"
 }
@@ -93,6 +93,30 @@ function clean-node() {
     ansible-playbook $BASEPATH/tools/clean_one_node.yml -e NODE_TO_DEL=$1
 }
 
+function help-info() {
+    case "$1" in
+        (add-node)
+            echo -e "Usage: easzctl add-node <new_node_ip>\n\nMore information please refer to 'docs/op/AddNode.md'"
+            ;;
+        (add-master)
+            echo -e "Usage: easzctl add-master <new_master_ip>\n\nMore information please refer to 'docs/op/AddMaster.md'"
+            ;;
+        (add-etcd)
+            echo -e "Usage: easzctl add-etcd <new_etcd_ip>\n\nMore information please refer to 'docs/op/op-etcd.md'"
+            ;;
+        (del-etcd)
+            echo -e "Usage: easzctl del-etcd <etcd_ip>\n\nMore information please refer to 'docs/op/op-etcd.md'"
+            ;;
+        (clean-node)
+            echo -e "Usage: easzctl clean-node <node_ip>\n\nMore information please refer to 'docs/op/clean_one_node.md'"
+            ;;
+        (*)
+            usage
+            exit 0
+            ;;
+    esac
+}
+
 ###############################################################
 
 BASEPATH=/etc/ansible
@@ -100,28 +124,32 @@ BASEPATH=/etc/ansible
 [ "$#" -gt 1 ] || { usage >&2; exit 2; }
 
 case "$1" in
-
-(add-node)
-        ACTION="+---\033[33mAction: add a k8s work node\033[0m---+"
+    
+    (add-node)
+        ACTION="Action: add a k8s work node"
         CMD="add-node $2" 
         ;;
-(add-master)
-        ACTION="+---\033[33mAction: add a k8s master node\033[0m---+"
+    (add-master)
+        ACTION="Action: add a k8s master node"
         CMD="add-master $2" 
         ;;
-(add-etcd)
-        ACTION="+---\033[33mAction: add a etcd node\033[0m---+"
+    (add-etcd)
+        ACTION="Action: add a etcd node"
         CMD="add-etcd $2" 
         ;;
-(del-etcd)
-        ACTION="+---\033[33mAction: delete a etcd node\033[0m---+"
+    (del-etcd)
+        ACTION="Action: delete a etcd node"
         CMD="del-etcd $2" 
         ;;
-(clean-node)
-        ACTION="+---\033[33mAction: clean a node\033[0m---+"
+    (clean-node)
+        ACTION="Action: clean a node"
         CMD="clean-node $2" 
         ;;
-(*)
+    (help)
+        help-info $2
+        exit 0
+        ;;
+    (*)
         usage
         exit 0
         ;;