中文摘要：可萨是西迁到高加索地区的一支突厥化部族，公元7至9世纪，可萨人在伏尔加河中下游建立了强大的可萨汗国，成为丝绸之路北道上的重要中转站，同拜占庭帝国和阿拉伯帝国保持着密切的*经济联系。8世纪中叶，可萨人从萨满教的信奉者转而皈依犹太教。本文着重分析可萨人改信犹太教的历史背景和影响，并结合唐代文献证明可萨汗国通过直接或间接的途径同中国相连，由此提出这样的论点：犹太人或可萨犹太教徒有可能从可萨汗国出发，经过从中国到拜占庭的北道入华。

ABSTRACT：The Khazars is a Turkic tribe that moved into the north Caucasus from east. From 7th century to 9th century they established a strong qaghanate, thus became an important transit station in the north route of silk road, keeping close relation with Byzantium and Arabian Empire. Around 750’s the Khazars converted to Judaism from follower of the Tengri cult. This paper will discuss the background and impact of the Khazars conversion，and quote Chinese ducument to prove that Khazaria contacted with China directly and indirectly in the Tang