1978 March to19812 March, he studied in the mechanical design and manufacturing major of Northwest Agricultural College. 198 10 graduated from the University and worked in Northwest Agricultural University, mainly engaged in research, teaching and energy and environmental engineering. 1986 was promoted to associate researcher, and was hired by the school as a tutor for master students of agricultural bio-environment and energy engineering; 200 1 promoted to researcher. In 2005, he was hired by the school as a doctoral supervisor of agricultural bio-environment and energy engineering. During my work, I studied in Agricultural Products Processing Engineering of Northwest Agricultural University from September 2002 1992 to July 2004 and obtained a master's degree. From September 2002 to February 2005, I obtained a doctorate in ecology from Northwest A&F University.