[Objective] The feasibility of improving saline-alkali soil with different additive proportion of garbage enzymes fermentation product of fruit and vegetable waste was explored in order to provide theoretical and practical basis for the sustainable development of agriculture in Inner Mongolia.[Methods] The garbage enzymes and water were diluted by volume ratios of 1:200 (GE₁), 1:500 (GE₂) and 1:800 (GE₃). The effects on key soil chemical properties (pH value, EC and ESP) and soil nutrient status (organic matter, hydrolytic nitrogen, available P, available K and DOC) were studied by soil culture experiments.[Results] The application of appropriate garbage enzymes dilution ratio could reduce soil salinity and increase soil nutrient content. When the garbage enzymes dilution ratio was GE₃, the soil pH and alkalinity (ESP) were reduced by 17.51% and 38.42%, respectively; the electric conductivity(EC) value was significantly reduced by 42.50%, the soil organic matter and available K content increased significantly by 56.54% and 79.76%, respectively, and the soil available N and available P content decreased by 6.52% and 8.48%, soil DOC increased by 34.28%.[Conclusion] In this experiment, with the GE₃ ratio of garbage enzymes for improving saline-alkali soil, and according PCA analysis, we found that pH value, EC and available K were the characteristic indicators of garbage enzymes for the improvement of saline-alkaline soil.