Depending on the data of The Changing of China’s Social Structure in 2001 , this paper analyses the attainment of Chinese social status of different historical period by linear regression and logistical regression. The paper finds that :(1)the Chinese society is becoming opening instead of blocking out; the achieved factors are much more significant than the ascribed; but some boundaries of classes need to be opened, such as Hukou system,etc. (2)in the factors of the achieved, educational capital is becoming more important; (3)the attainment of social status for sons and daughters are all affected by their families class origin instead of only sons.