Total 200 sweetpotato materials were planted both in the salt test field and fertile land in Yancheng City, Jiangsu Province. By comparing the yield and quality index in saline soil and fertile soil, such as seeding survival rate, storage roots numbers of single plant, yield of single plant, commodity potato rate and storage roots dry matter content, a comprehensive identification for salt-tolerance of these sweetpotato materials in entire growth period was carried out. The results showed that the storage roots numbers of single plant increased, but seeding survival rate, yield of single plant, commodity potato rate and storage roots dry matter content decreased. Correlation analysis showed that the salt-tolerance index of sweetpotato was significantly positively correlated with the relative seeding survival rate and the salt-tolerance coefficient of storage roots numbers of single plant, yield of single plant and commodity potato rate, but negatively correlated with the salt-tolerance coefficient of storage roots dry matter content. The tested materials were graded and 19 Salt-tolerant sweetpotato materials were screened out, according to the salt-tolerance index. It provides the material basis for the study of salt-tolerance mechanism and salt-tolerance breeding of sweetpotato.