In accordance with the new requirement of the new standard of cement for the quality of the cement input in kind,in this paper put forward are the methods and approach to the technical innovation of the cement grinding system.It is thought that designing and innovating measures to the cement grinding system should be adopted practically and suit specific conditions such as the production scale,process and the different products.In this paper,connected with the practical example,also introduced is the practical effect of the high-fine-and-output mill technology,high efficiency classifier and the powder grinding system of the roller press.