Some of the Yao peoples speak Hmongic languages (Miao); these are called Bunu.

A Mienic lect called bjau2 mwan2 ("Biao Man 标曼"), related to Mien of Changping and Luoxiang, is spoken in Liuchong 六冲, Qiaoting Township 桥亭乡, Pingle County 平乐县, Guangxi (Tang 1994); another "Biao Man 标曼" dialect is spoken in Dongpingdong 东坪洞 (Tang 1994).

Using Mao's (2004) new data, Aumann & Sidwell (2004) propose the following classification of the Mienic languages, based on innovations in rhotic consonants.

Aumann & Sidwell (2004) consider the following classification by Wang & Mao to be unlikely, which is based on the voicing of voiceless sonorants, a common areal feature.

Hsiu (2018) considers Changping Mien to have been influenced by Kim Mun lects due to geographical proximity, although it retains many unique forms that indicate it should belong in its own branch.