Abstract: China is a big agricultural country, and the production volume and consumption of vegetables are huge. In terms of pest control, traditional chemical control has been unable to meet the urgent needs of the contemporary public for healthy life. One of the priorities of green production is pest prevention and control, and biological control is one of the important means of green prevention and control of pests and diseases. Compared with chemical control, biological control has the advantages of high efficiency, environmental protection, harmless to human and animals, and can perfectly avoid the defects and deficiencies of chemical control. This paper summarized the main strategies of biological control and the application status of pest control in vegetable green production, and discussed the application prospect and future development direction of biological control in vegetable green production.