A culture apparatus comprises an outer case, an inner case configured with two side plates, a bottom plate and a top plate, and arranged inside the outer case, a door configured to open and close an opening formed in a front face of the inner case, and a plurality of shelves. Each of the side plates include raised portions vertically arranged and formed by press working. The raised portions of the side plates constitute plural pairs of shelf rests. Each of the raised portions includes an upper face as a placement portion, on which one of the plurality of shelves is to be placed, and a lower face. A stopper portion which limits movement in a vertical direction of a shelf placed on an immediately lower pair of shelf rests is provided on the lower face and protrudes from the lower face by the press working.