Abstract: In order to screen out the new varieties of sweet potato with high yield, stability, adaptability, stress resistance and good quality, which were suitable for the cultivation in Fuqing City, the 12 high-yield and high-quality varieties of starch-type sweet potato and the 11 edible and processed varieties of purple sweet potato were introduced for the observation and variety comparative test by Fujian Seed Station in 2020, and then the characteristics, yield, quality and disease resistance of the introduced varieties of sweet potato were comprehensively investigated. The results showed that among the new varieties of high-yield and high-quality starch-type sweet potato, Huangjinshu No.1 and Jinshu 18 had high yield, good exterior quality, good eating quality and good disease resistance, with high dry matter ratio and starch yield rate, while Fushu 604 had high yield of fresh tuber, good exterior quality, good eating quality, strong disease resistance, and high percentage of large tuber, with high dry matter ratio and starch yield rate. The above three varieties all had good comprehensive performance and were suitable to be planted locally in Fuqing City, which were suggested to be used as the fresh-eating or starch processing varieties for the demonstration and extension. Among the varieties of edible and processed purple sweet potato, Longzi No.12 and Jinshu 17 ranked first and second in terms of fresh tuber yield, with good exterior quality and eating quality, high dry matter ratio and starch yield rate, and strong disease resistance. It was suggested that they could be used as the purple fresh-eating varieties or processed varieties for the demonstration and extension.