You may be asking why others would need admin level access to your page. They can post updates and photos, they can form and manage groups, or they may need access to the metrics Facebook provides with its Insights page. By granting others in your company admin status, you allow them to help you manage and track your social media presence.
To add an admin, go to your Facebook Page and look for the Admin bar at the top of the left sidebar. At the end of the bar is a link that says “See All.” Click on that to go to the Manage Admins page. You will see the current list of admins and a blank box to add a new one.
There are two ways to add a new admin. If you, on your personal Facebook account, are Facebook friends with the person you want to add, then just type their name into the blank box. Their name will appear in a drop down, click on it, then click “Save Changes” at the bottom of the page. You will need to enter a password to save the changes. If you are not friends with them, they need to Like the page first, then you can add them.
Remember to only add the people that you trust. If you decide to revoke their admin status, just go back to the Manage Admin page and click on Remove Admin next to their name.