Abstract:In present paper, with a total of 298 isolates of Blumeria graminis f.sp.tritici collected in China’s northeastern spring wheat region during 2004-2008, the physiologic race and virulence types of the pathogen were investigated using detached leaf culture method of 9-nationwide unified differential hosts for infection type, Gilmour’s octal number system for race designation and 22 known Pm gene wheat varieties (lines) for virulence frequency analysis. The race survey result was indicated that race 15 maintained prevalent for 3 consecutive years: 2004-2006 with the frequency of 13.7%, 15.6% and 20.3%, however, in the year 2007, the race 17 became most common with the frequency of 10.2%, furthermore, the prevailing race was shifted into race 411 with the frequency of 20.6% in the year 2008. The virulence frequency result for 2004-2008 was shown that the virulent genes V4b, V2+6, V4+8, V12, V16, V18, V20, V21, V22, V23 occurred in very low amount, their virulence frequency being 0-28.0％, in other words, Pm4b, Pm2+6, Pm4+8, Pm12, Pm16, Pm18, Pm20, Pm21, Pm22, Pm23 were effective and had applicable value in wheat breeding for resistance.