In order to study and assess the effects of different utilization methods on soil quality of salinized land and provide theoretical basis for establishing sustainable land use pattern and regional ecological restoration in the researcharea，taking the saline soil of the Tumochuan plain as the researchobject，five land use types(salt wasteland，improvedland，grassland，farmland，woodland)within the region are monitored，and principal component analysis is used to select key indicators from thirty-two soil qualityfactors，includingphysical，chemical，and biological indicators to establish thesoil quality assessment index for the soil qualityassessment.The results showthat:(1)There are some differences in thephysical，chemical，and microbial biomass properties among different land usetypes.Ingeneral，woodland，grassland，farmland and improved land can effectively reduce soil salinization degree and improve soil physicalproperties，and increasesoil nutrients and microbialquantity.(2)Indexes for soil quality assessment of the Tumochuan plain include 2 -5 mmaggregate organiccarbon，total salinity，saturation moisturecontent，bacteria numbers，ammonium nitrogen and chlorideions，which weights were0.35，0.23，0.17，0.10，0.08 and0.06，respectively.(3)Soil quality assessmentorder:Theresults based on four soil quality indexes showed that the indexes of farmland，forestland and pastureland are higher than those of the salt wasteland and improved land.