Abstract: Using the data of China Household Income Survey (CHIPS) in 1988, 1995, 1999, 2002, 2007 and 2013, this paper analyzes the intergenerational mobility in China from three dimensions:economic status, educational background and social status. The research finds that the intergenerational mobility based on economic status is strong and tends to "stratum leap", but the intergenerational mobility based on educational background and social status is weak and tends to "stratum solidification". In recent years, the liquidity of the three has weakened. This shows that the current mobility between social classes may be more derived from the external environment changes created by economic and social development; Compared with income distribution, the root causes of social inequity may come from education and other fields involving equal opportunities. To some extent, this conclusion can provide some support for the current "double reduction" policy of education. In terms of promoting social equity in the future, relevant public policies should focus on basic education and other areas related to initial equality of opportunity, especially on benefiting the lower class.

Key words: intergenerational mobility, social justice, common prosperity, education "double reduction"