240 in China (Xu Shixuan 2005). 0 monolinguals. Ethnic population: 240.
Southwest Yunnan Province, Xishuangbanna Dai autonomous prefecture, Menghai county, Mengzhe township, Manghong village cluster, one village: Laopinzhai.
6b (Threatened). Language of recognized nationality: Hani.
SVO; simple syllable structure; certain obstruent onsets may be prenasalized, aspirated, or palatalized, but otherwise no consonant clusters; syllables may be closed by stop or nasal; 3 tones, tone sandhi; words have 1 or 2 syllables; modifiers follow heads; loanwords from Dai and Chinese.
Others officially classified as Undetermined Nationality. Some view Bisu as an important link to their culture and hope to preserve it. Traditional religion.