The indiscriminate use of toxic pesticides lead to high resisues in food, vegetables and fruits, resulting a serious threat to the safety of people’s lives. Biological control of pests will provide safer food and a clean environment. This article briefly describes the latest progress of using banker plant system to carry predatory or parasitic natural enemies to manage pests in vegetables and other crops. Banker plants continuously supply natural enemies, and like a bank (banker) to continuously supply currency; and the spread of natural enemies from the banker plant to the crop system to control crop pests. We would like to provide the most updated information in theory and utilization of banker plant system, and the most recent advance in using banker plant systems to promote biological control in China. We also discussed the pros and cons of using banker plant system in integrated pest management programs.