As the synthetic reflection of many characteristics' development in modernization process, urbanization indicates that the social structure, social relationship and economic relationship has changed deeply. The development of automobile industry has close relation to these changes of macroscopic environment. Based on the changes of environmental factors in urbanization process, this paper researches into how urbanization process affects the sales of automobile. It founds an indicator system of environment, which reflects the level of urbanization, makes correlate analysis between the environmental independent variables and the sales of different kinds of automobile to quantify the degree of effects. All in all, this paper provides an available basis to the research in basal characters and developmental trend of mini-automobile's consumption.