Taking the data from China Family Panel Studies （CFPS 2014）and Quantile Regression Model， this paper explores the impact of education return on income gap in China. The results show that：（1） with the increase of income quantile，the returns to education in China has gradually declined，which helps to narrow the income gap among different groups in China；（2） The spouse’s years of education have a greater impact on low-income individuals；（3） The return to education in urban areas is higher than that in rural areas. The urban-rural effect of the return to education will aggravate the income gap between urban and rural areas；（4）The return to education in the eastern region is higher than that in the central and western region，and the regional effect of the returns to education will aggravate regional income gap. In general， although the returns to education will narrow the income gap among different groups，it will widen the income gap between urban and rural areas and between regions.