The mould plays a more and more important role in modern industry. Chery cars in this design are single-cavity injection mold design toolbox. Including analysis of the injection machine model choice、Determination of sub-surface, pulling out of the top agencies and institutions designed、Forming parts of the design, Gating system, ejection mechanism design, cooling system design. And the mapping of the mold assembly diagram and dynamic model scheduled to die map, and mold and the major part was CAD drawing. As the product side there is need to pull out the core hole, while the bevel pillar of institutions can achieve lateral pumping action, and the simple structure, manufacture and easy to install, so the design uses Bevel capitals out of institutions.