PROBLEM TO BE SOLVED: To suppress variation of an amount of powder filling to a cylindrical cavity in a powder feeding box for powder molding device having the cylindrical cavity.SOLUTION: A hole edge 3a on a forward movement direction front side of the powder feeding box on a put-in hole 3 disposed on a floor plate 2 of a powder feeding box 1 is formed into a recessed shape, which becomes recessed shape as going toward the rear of the forward movement direction of the powder feeding box. In addition, the shape of the hole edge on the front side of the forward movement direction of the powder feeding box on the put-in hole is formed by combining an arc part of a similar figure to a plane view profile of the cavity and a straight line part extending and continuous to both sides of the arc part in a tangential direction.
