Using sex pheromone can suppress the insect population by attracting male insects and disturbing mating of insects. The application effect of sex attractants is affected by many factors, such as the type of trap, hanging height and so on. In this study, different types（barrel-type trap 1, barrel-type trap 2, and adhesive-type trap） and suspension heights（20 cm, 50 cm, 80 cm above the upper leaf surface of rice） of sex traps were compared to trap the male of Chilo suppressalis. The results showed that there were differences in the number of Chilo suppressalis trapped by different types of traps. As a whole, barrel-type trap 1 ＞ barrel-type trap 2 ＞ adhesive-type trap, but it did not reach a significant level（P=1.866, F=0.165）. There was significant difference in the number of adults of Chilo suppressalis trapped by different hanging height traps（df=2, F=9.152,P=0.001;Newcon lure core df=2, F=6.677,P=0.004）. As the height of the trap increased, the number of trapped adults gradually decreased. The best suspension height of sex attractant lure on Chilo suppressalis in rice fields was 20 cm. The dynamic curves of Chilo suppressalis obtained from different height treatments are basically the same, which shows that the height of trap has little effect on monitoring the adult peak of Chilo suppressalis.