Soil salinization swallowing the limited farm land of mankind’s has become another global serious constraint for agricultural production.Improving the capacity of crop salt-tolerance is urgently needed for plant breeding.With development of modern molecular biology technology,genetic engineering was expected for breeding the salt-tolerant plant.Scientific workers have cloned a number of salt-tolerance related genes which have been used for rice breeding.Salt-tolerance of the transgenic rice has been improved to some extent.In this paper,the mechanism of salt-tolerance in plant,salt-tolerance related gene cloning and transformation of the genes into rice were reviewed.The prospect of the research area was also illustrated.