The computer aided injection mold design of the remote controller designed by HS MOLD is designed as the die structure of one mold and two cavities in order to save the cost. Because of the different volume and size of the two mold cavities, the layout design of the pouring system should be considered comprehensively in order to facilitate the balanced filling. In order to shorten the molding cycle of plastic products, reduce warping deformation and reduce die locking force, the shape and size design of pouring system is also very important.