“帕西”是傣语对回族的称呼。在云南和中国民族学界,“帕西傣”这一概念,专指云南省西双版纳州勐海县勐海乡曼短村公所的曼峦回、曼赛回两个寨子的特殊穆斯林族群。本文以两份新发现的家谱为线索讨论“帕西傣”这一特殊穆斯林族群的形成问题,认为“帕西傣”通过不同的婚姻形式来稳定、发展自己,并在此过程中形成独特的民族风俗和民族心理,是云南回族穆斯林从清代以来,在适应西南边疆少数民族社会过程中,通过族际婚姻而形成的回族派生族群。 “Passy ” is a Dai call Hui. In Yunnan and Chinese ethnology, the notion of “Parsi Dai” refers specifically to the special Muslim communities of Manzhai and Manzai, both back to Manzhai Village, Menghai Township, Menghai County, Xishuangbanna Prefecture, Yunnan Province. This article uses two newly discovered genealogies as a clue to discuss the formation of the “Parsi Dai”, a special Muslim group. It argues that “Parsi Dai” stabilized and developed himself through different forms of marriage. In the formation of a unique ethnic customs and national psychology is the Hui Muslims in Yunnan since the Qing Dynasty, in the process of adapting to ethnic minorities in the southwestern border, formed by inter-ethnic marriages derived ethnic groups.