This paper depicts the process and the path of labor mobility from the perspective of evolutionary game between peasant households and the government. The research shows that: first, to some extent, the government's policies, which aim at the social and economic development and the employment increase, have been changing at every stage of the reform. Second, with time passing and reform deepening, the government shows a more and more affirmative attitude towards farmer's choice about "working in non-agricultural sectors inside rural areas" and "rural laborer flow to the cities". Third, the political system innovation, which has been carried out since the Chinese reform of 1978, is a process from bottom to top with a strong motivation derived from the farmers. And the policy at each stage reacts to the employment behavior of peasants, although this reaction has lagged a little. Fourth, the labor mobility of peasants has been still more and more active research and the government is capable of taking more positive attitude when facing huge labor flow for works in urban areas.