This paper uses CFPS data ito analyze the impact of hukou system on social stratification, income level and social status of workers in China. Firstly, the regression tree model based on recursive partitioning algorithm shows that the hukou system of urban-rural segmentation is an important reason for social stratification. Secondly, the income level and social status measured by subjective and objective methods show that the hukou discrimination in the labor market tends to weaken from the perspective of total wage income level; from the perspective of social status, the hukou discrimination between urban and rural areas is weakening, but the hukou discrimination between local and foreign areas is strengthening. Finally, this paper proposes to comprehensively improve the educational opportunities of children of all groups, especially low-income groups, by vigorously promoting the equalization of educational opportunities and popularizing the quality of education when the reform of the hukou system has entered the deep-water area and is becoming more and more difficult. Through education to change the family"s destiny, in order to gradually reduce the potential welfare and ‘gold content’ of hukou, through the ‘curve reform’, to lay a social and economic foundation for the complete elimination of hukou discrimination.