Abstract: Two-year regional testing and one-year demonstration testing of new virus-free potato variety “Tuodu175” was carried out in Xiang’an District, Xiamen City. The results showed that “Tuodu175” showed some traits of good tuberization, high percentage of marketable tuber, high yield and strong resistance to diseases. So “Tuodu175” could be extended in Xiang’an District, Xiamen City. This paper also summarized its high yield cultivation techniques.