From the perspective of Human Capital theory, Screening Hypothesis theory and Labor Market Segmentation theory, the mechanism of higher education in influencingsocial mobility is that individuals obtainhigher economic and occupa- tional statusby receiving higher education and change their social classes from the lower to the upper. Compared with the elite stage of higher education, the current social mobility of the higher education has been weakened. There are three main rea- sons, including the unequal opportunity in higher education, the over-supply and the unfair employment of graduates. T...