During 1992─1994,we heve studied on the technique to control male Asian corn borer by using sex pheromone. Sex pheromone mass trapping for the control of the male Asian com borer was conducted. The mass─trapped areas, the hight, density, time,and dosage of woter─basin trops setting up were studied. We also observed on the regularity of outbreak and bionomics of overwintering generation adults. The benefits economic,social and ecological of this technique have been proven to be remarkable.