Abstract: Longhorned beetle, Eurypoda antennata, was one of the main insect pests that were detrimental to ancient woodybuildings. In Longyou Country of Zhejiang Province, it p roduced only one generation every year, the pest of all stageswerefeeding in wood. Larvae experienced six instars, of which 2～4 instar overwintered in boring tunnels, and the fourth instarlarvae accounted for 78%. E. antennata began to moult atmid-June and reached the peak in early July, ended atmid-July.The molted was active at night and acquired nutrient from originally-destroyed wood, no migration was observed at themoment. Average eggs of femaleswere 80. 17 ( range from 27 to 148) , they laid eggs solitarily or dispersally between woodgaps, in feeding tunnels and occasionally on the surface of the wood. Dried, ventilated old buildingwas suitable for the pestsurvival. 8% Lv-se-weilei (200 ) integrated with strict quarantineswere effectively methods against the pest.