Abstract: Insect olfactory related proteins are performances of insect olfactory genes,and they can control many insect behaviors,such as feeding,mating and ovipositing and so on.Insect olfactory proteins are connections between insect molecular biology and insect praxiologyn,mainly including four kinds of proteins,namely,odorant binding proteins (OBPs),chemosensory speeifie proteins (CSPs),odorant receptors (ORs) and odorant degrading enzymes (ODEs).In this paper,brief analysis is made of the binding mechanism,neural mechanism and four kinds of insect olfactory related proteins.Besides,a discussion is also made on the future research directions of insect olfactory related protein.