According to the characteristics of high degree of alkalinity and weak soil permeability,the effect of different levels of MM and JD modifier on the different layers’ permeability of Da’an soda meadow alkaline soil was analyzed in the paper.The results showed that the effect of MM modifier was higher than JD modifier and MM modifier had the largest influence on the surface soil(0-20 cm).The soil permeability coefficient had a significant increasing with increasing of modifier input.