通过冬耕灭虫、灯光诱杀、天敌利用和药剂防治四个方面对防治甘薯天蛾的技术方法进行了研究。结果表明，冬耕能有效降低越冬虫源，比非冬耕田越冬蛹的死亡率提高２８％；灯光诱杀可降低产卵量，５０ｍ以内控制效果可达３０％以上。保护利用天敌能明显提高寄生率。药剂防治以敌杀死和Ｂｔ防治效果较好，１２０小时效果仍达７４％以上 Through the winter plow pest control, light trapping and killing, the use of natural enemies and pesticide control four aspects of prevention and control of sweet potato moth technical methods were studied. The results showed that winter plowing reduced the mortality of overwintering pupae significantly, and the mortality of overwintering pupae increased by 28% compared with the non-winter field. The light trapping and killing could reduce the fecundity, and the control effect could reach more than 30% within 50m. Protection and use of natural enemies can significantly increase the parasitism rate. Pharmacy to control the enemy to kill and Bt better control effect, 120 hours still reached 74%