The rice stem borer, Chilo suppressalis（Walker） has been the most serious rice pest in China. Trap-ping efficacy of two kinds of the sex pheromone lure was evaluated in field in Jiangsu and Anhui Provinces in 2013.Both the lures B and C were from Institute of Zoology, Chinese Academy of Sciences. Two treatments and two repli-cates were designed and the water tray trap was applied. At Jiangsu experimental location, the mean numbers ofmoths captured at 2 trays baited with the rubber lures B and C were 27.2 and 35.1, respectively. The difference wassignificant（P ＜ 0.05）. Similarly, the numbers at Anhui location were 3.6 and 5.9, respectively, and the differencewas highly significant（P ＜ 0.01）. It is suggested that the lure C should be applied in practical monitor and control.