Abstract: Based on the data of 83 cities in China from 2014 to 2017,this paper studies the impact of management scale and housing burden on the liquidity of provident fund.Results show that the liquidity of housing provident fund presents the characteristics of regional differentiation with serious gap between different cities; Besides,in the whole sample analysis,the higher the management scale,the smaller the pressure of provident fund liquidity,and the heavier the housing burden,the greater the pressure of housing fund liquidity;In addition,in the sub sample analysis,the liquidity pressure of provident fund in eastern region and the first and second tier cities is mainly due to the high housing burden,while the improvement of the management scale of the central and western regions and the third and fourth tier cities can further reduce the liquidity pressure of the urban provident fund.