Abstract:To make clear physiological and biochemical changes of wheat seeds in storage,2 varieties of wheat seeds were treated of artificial accelerated aging with high temperature and high humidity,i.e.,seeds were stored in 90% relative humidity and 45℃ for 0,1,2 days.The results showed that seed germination rate of ’Yumai 57’and the ’Jinyumai 2’increased slightly after aging treatment,seed vigor increased firstly and then decreased,the content of soluble sugar decreased and then increased,the MDA content increased firstly and then decreased.