diff --git a/roles/prepare/tasks/common.yml b/roles/prepare/tasks/common.yml
index eb1d1412e..b2c8f5c85 100644
--- a/roles/prepare/tasks/common.yml
+++ b/roles/prepare/tasks/common.yml
@@ -41,6 +41,25 @@
 - name: 设置系统参数
   template: src=95-k8s-sysctl.conf.j2 dest=/etc/sysctl.d/95-k8s-sysctl.conf
 
+- name: 查看是否需要设置 fs.may_detach_mounts
+  stat:
+    path: /proc/sys/fs/may_detach_mounts
+    get_attributes: no
+    get_checksum: no
+    get_mime: no
+  register: fs_may_detach_mounts
+  ignore_errors: true
+
+- name: 当需要时，设置 fs.may_detach_mounts 为 1
+  sysctl:
+    sysctl_file: "/etc/sysctl.d/95-k8s-sysctl.conf"
+    name: fs.may_detach_mounts
+    value: 1
+    state: present
+    reload: yes
+  when: fs_may_detach_mounts.stat.exists|bool
+
+
 - name: 生效系统参数
   shell: "source /etc/profile; sysctl -p /etc/sysctl.d/95-k8s-sysctl.conf"
   ignore_errors: true