The Ultraviolet and High-tension Light with the function of trapping and killing insects can kill 98333 Rhizopertha dominica (Fabricius),42 Cryptolestes ferrugineus (Stephens),684 Sitotroga cerealella (Olivier),120 Ahasverus advena (Waltl),411 Liposcelis entomophila (Enderlein) daily.Compared with grain screening,Rhizopertha dominica (Fabricius),Cryptolestes ferrugineus (Stephens),Sitotroga cerealella (Olivier) can be detected 20～90,18～34,66～73 days in advance respectively by the new method.Because the light can trap the adults that live through the winter,the light prevents the insects from returning and ovipositing on the surface of stored grain,and depresses the magnitude of offspring.At the same time,because of rational use Cangchongdi to control the Sitotroga cerealella (Olivier) and Liposcelis entomophila (Enderlein),the density of insects in two trial warehouses was kept in a low level.The new method realized non-fumigation all the year round.It costs 1015 yuan in contrast with 1855 yuan for insect control.The light is a perfect and new pattern for controlling insects instrument.