The effectiveness of Trichogramma and Beauvenia bassiana on controlling of M. separate was tested.The results showed that the rate of egg mass parasitism of T. chilonis ranged from 55.56% to 77.78%, and the rate of egg parasitism ranged from 14.24% to 27.69%. The rate of egg mass parasitism of T. dendrolimi ranged from 66.67% to 88.89%, and the rate of egg parasitism ranged from 14.63% to 30.54%. The revised effective of B. bassiana ranged from 20.75% to 54.72%.