The invention provides a pressure casting die which comprises a die body, a fixed die fixing plate, a fixed die insert, a die joint, a movable die insert and a movable die fixing plate. According to the external physical characteristic, the die body is in a cuboid shape, the fixed die fixing plate is arranged at the top end of the die body, the fixed die insert is arranged inside the fixed die fixing plate, and the fixed die insert is connected with the fixed die fixing plate through a bolt manner; the movable die fixing plate is arranged below the fixed die fixing plate, and the movable die fixing plate and the fixed die fixing plate are connected through a guide column and a guide sleeve. The pressure casting die is improved, the advantages that structure design is reasonable, side pouring gate feeding is reasonably carried out for pouring a pressure casting, the size accuracy of the pressure casting is high, the surface is smooth and bright, and technological defects such as deformation, cracks, flash and the like which influence the appearance and the product performance are avoided are achieved, and the problems and shortcomings provided in the background technology are solved.