Abstract: This article describes the breeding process of a new potato variety, Quanyun No. 4. It was a hybrid bred by crossing VT-1, as the female, and NS79-12-1, as the male parent. The growing period of the hybrid was approximately 91 days. The plant had dark green leaves, purplish green stems, and oval tubers thathad smooth skin, ivory-colored flesh, shallow eyes surrounded by red rings, 18.88% dry matter, and desirable edible quality. The crop yield was approximately 30 300 kg·hm^-2. This new variety of potatoes has been certificated by the authority of Fujian province in June 2014.