A heat transfer plate according to the present embodiment includes a first heat transfer unit transferring heat generated in a member mounted on the first heat transfer unit, the heat being generated due to shaping or controlling of a beam generated by a light source in a decompressed atmosphere, a second heat transfer unit provided around the first heat transfer unit, and a plurality of third heat transfer units making the first heat transfer unit movable with respect to the second heat transfer unit, the plurality of third heat transfer units connecting the first and second heat transfer units.