Urbanization should be fitted in with the economic development, over urbanization or under urbanization is going to the hind of economic develpment. In this article, we put forward a quantitative method which can tell how urbanization of each province is in perfect harmony with economic development and analyse urbanization progress in Yunnan province and nationwide from 1985 to 1996 with this method. And urbanization of each province in whole country is also included. In this way, we find out that speed o...