According to the new classification standards，there are eight mega- cites in China，including Shanghai，Beijing，Shenzhen，Chongqing，Tianjin，Nanjing，Guangzhou and Shenyang. They have eight characteristics，specifically high administrative rank，strong economic power，a large number of non-household register population，massive civilian car ownership，less per capita road area，high ratio of housing price and income，aggregation of high quality education and medical resources，concentrated energy consumption. In the development process，eight mega-cities face the common problems，that is excessive accumulation of population，traffic congestion，high housing price，strong resources and environmental constraints etc.. In the future，governing the mega-cities，China need to draw up a scientific governance planning firstly，to build a perfect “filter” for factor agglomeration secondly，to do the transitional policy arrangements thirdly，to solve external problems for mega-cites governance.