Abstract: In order to breed the nuclear infertility series which is quality low-temperature sensitive rice，use only one pair of recessive genes sterile "Tianfeng S-2" for infertility gene donor; and basic nutritional quality of rice which is Intermediate materials Longyou2 to receptor gene for infertility; and the choice of law of hybrid + ecological pressure system bred nuclear infertility series Fulong S2 of low-temperature sensitive rice which has these features: development as the basic characteristics of nutrition, infertility threshold temperature no higher than 23 ℃, good composite characters, dominant growth period, blast resistant is MR, with dispatch, outcrossing solid rate, fan can be good and so on. And it goes through the identification of the technical achievement of Fujian Province in November 2006. They have summed up a set of convenient, fast, efficient program to breed nuclear infertility series Fulong S2 which is low-temperature sensitive rice. The author briefly discusses the after breeding fertility, performance characteristics of Fulong S2 and its prospect.