Rice blast has an important economic impact during the past many years, causing significant yield losses in the northeastern rice growing region, where japonica cultivars have been widely planted. We have surveyed the predominant population and race changing of Magnaporthe oryzae, and the resistance of rice cultivars during the last 30years. Moreover, the utilization values of the identified resistance genes, and the key research aspects in the future were also discussed. These results will supply some suggestion for the further research about effectively controlling trice blast in this region.