Renormalization of the Cabibbo-Kobayashi-Maskawa Matrix in Standard Model

We have investigated the present renormalization prescriptions of Cabibbo-Kobayashi-Maskawa (CKM) matrix, and found there is still not an integrated prescription to all loop levels. In this paper We propose a new prescription which is designed for all loop levels in the present perturbative theory. This new prescription will keep the unitarity of the bare CKM matrix and make the amplitude of an arbitrary physical process involving quark mixing convergent and gauge independent.Comment: 4 pages, has been revise