If you’re the administrator of a Facebook group and you want to delete all the posts in it at once, here’s how to do it.

  1. Log into your Facebook account and go to your Groups page.
  2. Click on the group you want to delete posts from and click on the Edit button in the top right corner.
  3. On the Edit Group page, click on the Posts tab.
  4. On the Posts tab, click on the Delete All Posts button in the bottom right corner.
  5. Click on OK to confirm that you want to delete all posts in this group. ..