1996-2002 worked in the Institute of Plant Protection of Henan Academy of Agricultural Sciences, 1997 was elected as the trans-century academic and technical leader of the province, and from 2000 to 2002, he served as a special researcher for foreigners of the Japan Association for the Promotion of Learning, and went to Nagoya University in Japan for postdoctoral research. 2003-20 1 1 professor and master student of Beijing Agricultural College. Mainly engaged in the protection and utilization of insect resources and the teaching and research of pollution-free safety technology of agricultural products.