Natural products have been playing important roles in research and development of new pesticides,and amino acids are a type of important natural active substances.Naturally occurring amino acids exist widely in plants and microorganisms,and some of them exhibit significant Pesticidal activities,including herbicidal,plant growth regulating,antibacterial,fungicidal,insecticidal,acaricidal and nematocidal activities.In this review,it will summarize systematically the structural diversity and pesticidal activities of naturally occurring amino acids,based on the publications in domestic and foreign journals and databases in the recent thirty years.It might offer references for the research and development of new pesticides.