The device (70) for manufacturing a dental mold (90) is provided with: a structure (80) comprising a bottom plate (802) with a flat inner bottom surface and a side wall part (804) that surrounds the inner bottom surface, and having a space formed by the inner bottom surface and inner surface of the side wall part that can accommodate multiple spheres (86)； and multiple support members (84, 85, 85'； 89, 89') furnished at multiple positions that correspond and are located vertical to multiple positions on the perimeter of the inner bottom surface and can support a plate (57) in a horizontal state in a form that is elastically movable in the vertical direction by the weight from said plate supported thereby. For said plate, the device (70) comprises a plate (57) with an aperture that can support the mold (60) at the edge of the aperture.
