793 soybean varieties were evaluated for salt tolerance during the germination, seedling stage and later growth. Among tested varieties, 117 and 41 with salt tolerance (Grade 1 and 2) were identified at the germination stage and the seedling stage respectively. 280 soybean varieties were repeatedly evaluated for salt tolerance in the whole growing season in 2009 and 2010，and 35 varieties has been shown to be more salt tolerant than salt-tolerant control soybeans in two years. Three varieties, WDD1812，Jindou23, Jinyi38, showed high salt tolerance at the germination stage and the seedling stage. Besides these two stages, Jindou23 was more salt tolerant than the control soybeans in whole growing season. Besides the slat tolerance, some varieties, such as Jindou23, Jinyi38, Zhonghuang13, Xindadou1, Shandou125, Dongnong46, Dongda1, Hefeng38 etc., were high yield and quality. The excellent salt tolerance germplasm screened in this study provides the genetic materials for soybean breeding to improve salt tolerance. This paper describes the methods and index of evaluation for salt tolerance in the whole growing season, providing the basis for standard methods of evaluation of salt tolerance in soybean.