Manage membership for your Facebook group
Public groups
In public groups, people can become members without admin approval, and visitors (people who aren’t members) can post and comment if admins allow.
You can choose to
approve members and visitors as participants before they publish a post or comment for the first time. Once someone is approved as a participant, you can still require admin approval of their future posts.
Learn how to approve participants and manage posts
in public groups and about membership preapprovals
.
Private groups
If you're an admin of a private group, you can choose to turn on membership approval for your group. This means admins or moderators will have to approve membership requests before someone can join the group.
Turn on membership approval
1.
Tap 
in the top right of Facebook, then tap Groups
and select your group.
in the top right of Facebook, then tap Groups
and select your group.2.
Tap Manage
, then tap Group settings
.
3.
Tap Who can approve member requests
.
4.
Tap Only admins and moderators
.
Learn about membership preapprovals
.
