It has been reported that the researches of uptake,transport,metabolism of amino acids by plants and application of amino acid on fertilizers and pesticide at home and abroad.Amino acids in soil can be utilized directly, but the differences of uptake,transport,metabolism and physiology effects showed in plant because of different amino acids.Amino acid can easily be decomposed by sunlight or degradated microorganism.And it does not keep a poison remnant in soil and plantIts degradation product can also serve as crop nutrients and improve the quality and yield of crops.The application of such pesticidesis is safe for people and animals.Amino acid fertilizers can promote crop growth,strengthen resistance,improve soil conditions and increase crop yields.