In this paper,gypsum,peat,self-made saline modifier,Hekang were used to improve saline-alkaline soil,combined with scientific cultivation and management methods. Maize yield,soil physical and chemical properties were analyzed after treatment with different modifiers. The results showed that effects of soil modifier were obvious. Maize yield,plant height and leaf area were increased by application of soil modifiers. The soil pH decreased and soil available nutrients,organic matter and soil CEC were increased. The soil modifier improved the soil fertilizer capacity. The effects of self-made saline modifier and peat were better,maize yield was increased by 16.29% and 8.2%,respectively.