The results of impact of Regent, triazphos, bisultap and tank mixture of Regent+acephate-met on beneficial insects 28 days after treatment showed that the mortality of Regent at 30 ml/667 m~2 on spiders, ladybugs and beetles are 1.04%, 2.9% and 4.8%, but on Paederus fuscipes is 31%. It's showed a big impact on beneficial insects under Regent...