Abstract: The European sunflower moth(Homoeosoma nebulellum Hübner)is the most serious pest on sunflower seeds resulting in serious yield losses and quality decline of sunflower.To explore the variation in chemical components from volatiles of different resistant sunflower accessions to sunflower moth,the volatiles from the sunflower heads were collected by solid-phase microextraction(SPME)and analyzed by GC-MS.The main results were as follows:the volatiles from sunflower head were identified with terpenoid compounds as the main components accounting for above 90%,such as alpha-pinene,calamine,sabinene,beta-myrcene,limonene,camphene,etc.;and with a few amount of alcohols,heterocyclic compounds,alkanes and easters.9 different kinds of compounds were indentified in resistant oil accession of S31(such as bicyclo[3.1.0]hex-2-ene,2-methyl-5-(1-methylethyl)-,bicyclo[3.1.1]hept-2-ene-2-methanol,6,6-dimethyl-,etc.)whereas they were absent in susceptible confectionery accession of 3638C.Moreover,Terpenoid compounds and relative content in S31 were less than that in 3638C.The relative contents in compounds of beta-pinene,ethanol and bornyl acetate were higher in S31 than that in 3638C.These results will help to reveal the main active components in host plant orientation for sunflower moth and provide the basis for exploiting new control methods in future.