The invention discloses an enantioselective synthesis method of chiral (3Z, 9Z)-6, 7-epoxy octadecadiene, and belongs to the technical field of tea geometrid control. The invention provides a high-efficiency and high-stereoselectivity synthesis method of a leavoisomer and a dextroisomer of a tea geometrid sex pheromone by taking easily-obtained (2Z, 5Z)-octadien-1-ol (3) as a starting raw material. The enantioselective synthesis method is simple in step operation; purification is simple, and in many steps, purification is not required and next-step reaction can be directly performed; used reagents are commonly-used cheap easily-obtained reagents; the route is relatively short; the synthesis method is suitable for large-scale production. Through EAG (antennal potential) and a wind tunnel experiment, the invention further preliminarily judges that leavoisomer 1 has higher tea geometrid trapping capability, while the dextroisomer 2 basically has no tea geometrid trapping activity. By the enantioselective synthesis method, asymmetric synthesis of an optically active sex pheromone is expected to be widely applied to agricultural green control.