To study the resistance to rice blast of rice varieties ever grown in Jilin province, 82 strains of rice blast collected in rice field in Jilin province were inoculated. The results showed that the resistance of newly released varieties was improved greatly. The resistance of "Jiudao 41", "Tongfeng 8" and "Jiudao 33" was superior. Their resistance spectrums were over 95%. The resistance spectrums of other rice varieties were also boosted to a high level, such as "Jiudao 44", "Jiyujing", "Fengxuan 2", "Jiudao 46", "Jiudao 42", "Jiudao 39", "Chaochan 1", "Chaojidao 1", "Tongfeng 8", etc. There was obvious difference in resistance spectrum of the same rice variety to different strains collected from different area. Therefore, rice varieties must be selected properly according to their resistance to local strains.