To provide a luggage box capable of making chairs and footstools used outdoors using a luggage box and a headrest.

A luggage box for storing baggages is made up of a central part unit 5, a right part unit 6, and a right part unit 7, and hole parts 5E, 5F in which stays of a headrest are to be inserted and held, are formed on the bottom part 5C on the rear wall 5B side of the central part unit 5. Hole parts 6E, 6F similar to the hole parts 5E, 5F are respectively formed on the bottom part 6C on the side wall 6D side of the right part unit 6, and hole parts 7E, 7F similar to the hole parts 5E, 5F are also formed respectively on the bottom part 7C on the side wall 7D side of the left part unit 7.