The paper,after an in-depth study of development backgrounds and power mechanism of worldwide Mega-city,elaborates to present an analysis of the evolutionary path of its special structure.And then,found the Evolution of Mega-City and Mega-City region Spatial Structure include three aspects :One is the construction of multi-centers unisonant system heterogeneity with an concept of anti-polarization;the second is to realize the Effective Integration of space group and function group;finally,an ecological prio...