An article transport facility includes an article transporting mobile body configured to move along a path and having an article holder; an article support for storing an article, the article support is configured to be moved between an article transfer position and an article storage position; a lock device provided on the article support to be switchable between a locking state for locking the article support in the article storage position, and an unlocking position for releasing the locking state; and an operating device provided on the mobile body for moving the article support and switching the lock device.