To screen excellent cultivars of sweet potato in Xichang region, 5 varieties of sweet potato were selected from field trials in Xichang. With Puge sweet potato as the control, the morphological, biological, and economic traits as well as the yields and the tastes of all tested sweet potato varieties were comprehensively evaluated. The results showed that the yield of Chuanshu 225 was the highest with 4 148.29 kg/667 m2 , which increased 84.04% compared with the control, and it could be planted in Xichang region; Chuanshu 20 had the best taste evaluation, with a yield of 3 776.63 kg/667 m2 , which increased 67.55% over the control, and it has good trait of tuber forming, neat shape, smooth skin and strong resistance to adversity, which is suitable for promotion in Xichang region. Chuanshu 220, Chuanshu 20 and Chuanshu 224 are yellow flesh varieties, which may be rich in β-carotene. Chuanzishu 6 is a purple flesh variety, which may contain high anthocyanin. These four varieties can be further studied as sweet potato varieties with health functions.