An optical fiber re-coating device of the invention includes an optical fiber coater that cures resin and coats a coating-removed portion of an optical fiber therewith. The optical fiber re-coating device includes: a resin reservoir tank that stores the resin which is before subjected to curing; a pump that supplies the resin stored in the resin reservoir tank to an optical fiber coater; and an air bubble separator that separates air bubbles included in the resin from the pump therefrom, sends the resin from which the air bubbles are separated to the optical fiber coater, and returns the resin including the separated air bubbles to the resin reservoir tank.