Abstract:The purpose of the study is to investigate the ecological enviroment influenced by BT-corn hybrids in corn field.The results showed that BT-corn hybrid provides by Monsanto have no effects on grass and arthropeds,and it has dominate effect on maize borers and corn aphis,but has no effect to the numbers of such insect as:ladybirds,spiders,leaf beatles,chafers,field crickets,carabid beetles,mole crickets,setose thistles,stink bugs,cononys and so on.