To improve the loading efficiency of a cargo room and carry out loading/unloading of a cargo to/from the cargo room by means of less labor.

In lift equipment 9, a rail 17 is arranged in a cargo room 11 of a motor-truck 10 toward a rear opening part 12, and a platform 22 can be elevated by means of a lift device 20 provided with the platform 22 to which a cargo 1 is placed, while the lift device 20 is guided on the rail 17 so as to be moved, so that the platform 22 can be placed on the inside/outside of the cargo room 11. A deck plate 18 on which the cargo 1 is placed is guided on the rail 17 so as to be moved with the lift device 20 at the same time in the cargo room 11, and in the upper limit position for the platform 22, the deck plate 18 and the platform 22 are positioned at the same height substantially, while the rear end of the cargo deck plate 18 and the front end of the platform 22 are brought into contact with each other.