This article analysis the driving mechanism of evolution of spatial structural system of villages and towns, that is, spatial consumption behaviors effect spatial structure of villages and towns by location directing, factors concentration and scale effect. Based on the interviews and questionnaire to 100 households of 8 villages in Er-cheng town, this article suggested that spatial structure of villages and towns, under the influence of different spatial consumption behaviors, underwent 3 stages of spotting spatial structure, formation of spat...