Abstract: Four compounds have been obtaind for the leaves and stem of Amorpha Fruticosa（L）, They were identified as: 6a,12a-dehydro-α-toxicarol. 6a,12a-dehydro-deguelin. (±)-Tephrosin.(－)-6-hydroxy-6a,12a-dehydro-toxicarol. and in proper order mix proportion is 1:2.54:4.18:2.54, efficacious concentration is 0.20%, Coordination with stomach poison and anaesthesia reversible in room, the pests will be dead without eating by function exhaustion after being repeatedly anaesthesia. It will be dead to eat poisoned leaves on open country. The course is not reversible.