The effects of four kinds of soil ameliorants and three kinds of anti-alkali special fertilizers on soil salt content, salt storage of soil layer, yield components and dry matter quality of oil sunflower were analyzed in order to screen the suitable materials for improving the moderately salinized soil in Hetao Irrigation Area of Inner Mongolia. The results showed that the effects of soil ameliorants and anti-alkali fertilizers were significantly better than the control treatment, anti-alkali fertilizers showed better in promoting the emergence and survival rates and the yield of oil flower, while soil ameliorants better in soil desalting and reducing soil alkalinity. Danlu bacterial fertilizer (T5) showed best for plant, and also more prominent for soil; while phosphogypsum (T1) best for soil, so they are recommended to be used for improvement of salinized soil.