壮傣群体越人分化为傣、壮两群体是在南越国时期。此后,西迁的壮傣群体越人与东留的壮傣群体越人隔山隔水,很少来往,于是壮傣群体越人形成了壮、布依群体越人和泰掸群体越人两个群体。 Zhuang Dai groups more people differentiate into Dai, Zhuang two groups in the South Vietnam period. Since then, the more people from the west to Zhuang Dai and the Zhuang Dai from east to east are separated from each other, seldom come and go, so the more people form the Zhuang and Dai groups, the more the two groups are. .