The asset substitution effect of social security is conducive to optimizing the rural financial structure.The income squeeze effect of social security is conducive to expanding the scale of rural finance.The risk dispersion and risk compensation mechanism of social security is conducive to balancing rural financial supply and demand.However,social security to promote rural financial deepening has its preconditions and is an empirical issue.Using the time series data from 2002 to 2015,the VAR model is constructed to test the rural financial deepening effect of social security.The empirical resu...