Abstract:u. sp.nov. have not been reported up to now,by numerous investigation .test and research,wediscovered that:Fraxinus kupehensis Chiu. Sheng et Su. sp. nov. has its own propagationlaw and its unique propagation capacity,under normal condition,it can complete its lifehistory by sexual or asexual multiplication,so,its germplasnm resource was perserved,and the biotic variablity was stablized, to the end, ensuring that it can exist throughpropagating and derivating geoneration by generation.