Take the following steps to link your Instagram account to your Facebook Business Page: 

  1. Login to your Facebook Account.
  2. Go to your Profile Home page.
  3. Click Settings at the top of the page.
  4. Click Instagram.
  5. Click Log in.
  6. Enter your Instagram account's Username and Password, click Log In.

Click here to learn how to add a Facebook page to your Instagram Business account.