To mold at low cost a compact suitable for producing a small amount with various kinds, having various kinds of thin parts and thick parts.

A side mold 2, a lower mold 3 provided vertically movably in the side mold 2, and an upper mold 5 for tightly closing the molding space Q formed with the side mold 2 and the lower mold 3 are provided. A water permeable mold 7 is provided at the lower surface of the upper mold 5. Further, a draining path 9 communicating with the water permeable mold 7 is provided inside the upper mold 5. A thin part forming member for forming a thin part in a compact is attached to the lower mold 3 via an elastic floating connecting means in a state floating above the lower mold 3 upper surface by a predetermined distance.