Abstract: Biocontrol agents are one kind of pesticide preparations which utilize living organism or its metabolic products to control the agricultural pests. Along with the adverse effects on the invironment of chemical pesticides,more people start paying attention to the biocontrol agents.The goal of developing biocoutrol agents is to obtain the commercial products. This paper discusses some important factors to be considered in the developing bioeontrol agents which include the commerical,biological and technological Considerations.