To drastically improve a workability by providing a mobile truck which is horizontally moved on a device base stand, a center leaf equipment having a center leaf, a center leaf driving device which vertically moves the center leaf and a truck driving device which moves the mobile truck along a guide bar.

The thigh and leg parts of trousers are superimposed on a lower trowel 12 with correct creases at first, the thigh parts are made into a saving state to a trouser waist part by opening them with a crotch as a center, the center leaf 27 is horizontally moved to the crotch from a toe direction in leg parts and stopped in a state where it is positioned on the leg parts and the saved thigh parts are placed again so as to be superimposed on the leg parts on it. In the state, an upper trowel 12 is lowered so as to execute pressing. When the center leaf equipment 21 between the thigh parts and the leg parts is horizontally moved to the toe direction and drawn out from between the thigh and leg parts after pressing, the trousers in a state where the thigh and leg parts are superimposed are left. Therefore, the trousers left in a remaining state on the lower trowel are collected.