Abstract: 【Objective】 In order to explore the tolerance of rapeseed under saline-alkali soil stress in Xinjiang, screen out salt-tolerant varieties that are more in line with actual production, and establish a salt tolerance identification system for rapeseed under saline-alkali environment in this region. 【Methods】 In this study, the pot soil culture method was used to identify the salt tolerance of rapeseed germplasm resources with strong salt tolerance screened in the previous experiment with the proportion of T₁, T₂, T₃, T₄ and T₅ in southern Xinjiang saline soil. The salt tolerance of the whole growth period was identified, and the optimum concentration of salt tolerance screening for rapeseed under saline-alkali soil was determined to be. The concentration of saline soil was used to identify 300 rapeseed varieties, and the germination rate was determined. According to the growth situation, 6 rapeseed germplasm resources with strong salt tolerance were screened out, and salt tolerance gradient identification was carried out according to different proportions. The ion content was determined, and the salt tolerance of the varieties was classified by the germination rate of rapeseed under saline soil. 【Results】 The results showed that the optimum concentration of T₃ for the identification of salt tolerance of rapeseed during germination under saline soil in Xinjiang was determined. In addition,the ion content was determined, and the salt tolerance of rapeseed varieties was classified according to the germination rate of rapeseed under saline soil. 【Conclusion】 In this experiment, the salt tolerance identification concentration of rape saline soil is determined. According to this concentration, 300 rapes are divided into four categories: strong, medium, weak and extremely weak by germination rate, including 10 salt-tolerant varieties, 75 medium salt-tolerant varieties, 91 sensitive salt varieties and 24 extremely sensitive salt varieties. According to the observation of the whole growth period, 6 varieties with strong salt tolerance are determined, and the salt tolerance identification experiment is carried out in the whole growth period. According to F = 0.4 Z + 0.3 H + 0.3 Y, the salt tolerance was classified. The Z <0.3 of CJLZS219266 and CJLZS219310 was grade IV, saline-alkali sensitivity. The Z value 0.3 ≤ Z <0.5 of CJLZS219346, CJLZS219181 and CJLZS219172 is grade III, which is not tolerant to saline-alkali. The F > 0.7 of CJLZS219368 is grade I strong saline-alkali resistance.