Abstract: In this paper,by using the NCEP/NCAR reanalysis monthly mean data from 1958 to 1997 and summer precipit ation and temperature from 69 observation stations of northeast area in China,the persist entactivity of northeast cold vortex and its general circulation anomaly charact eristics have been studied.The results show that the persistent activity of northeast cold vortex is notonly a very important factor to the summer temperature and rainfal of northeast area in China,but also have impact to the precipit ation in some other areas in China,especialy in middle and lower reaches of Yangze River.