Three kinds of rich selenium ore powders with different selenium contents were employed to 4 crops,such as soybean,yam,corn,mung bean.The results showed that:①The selenium content of plants could be improved by applying rich selenium ore powders.The selenium content of crops dealed with three kinds of ore powders was from 0.062 mg/kg to 5.670 mg/kg,increased by 0.043～5.629 mg/kg;②The effect of ore powders with higher selenium content was better than the lower,but different crops acted differently.The response of the soybean to the change of selenium content in selenium ore powders was the greatest,and it was 7.949 3.The response of the yarn was 3.736 8,the mung bean 2.645 2,the corn 2.068 6;③The selenium absorption content of different crops was different.The average of the selenium absorption content of the soybean was(1.918 7 mg/kg),the yarn 0.239 3 mg/kg,the corn 0.123 7 mg/kg,the mung bean 0.104 3 mg/kg;(④The) effect of selenium absorption was different among soybean cultivars of different genotypes.The effect of Enshi native mung bean was better than E-Dou No.6.