Abstract: Biological pesticide is the necessary option for human beings to reduce the contamination and come back to the nature. Compared with chemical pesticide, biological pesticide has the unique superiority .In the aspect of preventing the blight and offloading the weed, the prospects of the application of biological pesticide is good. The development of biological pesticides is the need of agriculture sustainable development and environmental protection, the concept and scope of pesticide、the emergence of bio-pesticide and application status is summarized in this text , the biological pesticide industry development advantages and the problems is discussed in this paper, and this text proposed biological pesticides development