Abstract: After 10 years’research and 5 years’controlling practice, an integrated management system based on ecological principles has established in Longyou County, Zhejiang Province, including major insect pests monitoring forecasting and controlling methods. Areas of moso bamboo forest with above middle level pest damage decreased from 7 140.5 hm2 in 1998 to 20.5 hm2in 2002Number of dead bamboo caused by pest damage jumped down from 15 000 per year to 12 per year. With the integrated management system, an economic value of 28.69 million has been saved in the past 5 years.