This paper discusses the necessity and significance of developing the extra fine-complex sway jaw crusher.It should be pointed out that you wlill have a success if you adopt the methods of the optimization design.Also it recommends the methods, steps and flow chart of the optimization design of the extra fine-complex sway jaw crusher.And it discusses the grading charts of the particulate products crushed by these two kinds of the etra fine-complex sway jaw crushers developed.