One hundred forty-eight mono-spore strains were separated from the samples of rice blast which were collected in each county and city in Jilin province in 2006.7 groups with 25 physiological races were identified by comparing with China verified strains,among which ZE group was dominant group,ZE1 was dominant physiological and ZG1 and ZA57 were the secondary physiological races.The dominant physiological race of Jilin did not change to compare the last year,and their frequency difference was not remarkable in two years.