Lingao language has 17 initials, 82 finals and 6 tones. Although the number of tones in Zhuang and Dong languages is different, the corresponding relationship between them is very neat. The third sound of Lingao language corresponds to the third and fifth sounds of other languages; The fourth key corresponds to the fourth and sixth keys of other languages. Of course, after Lingao people moved to Hainan Island, Lingao language had little contact with other Dong-Tai languages on the mainland, but increased contact with Li language and Hainan Island Chinese. As a result, Lingao language absorbed a part of the vocabulary of Li language, and more of them were Chinese loanwords (the early borrowing of the southern dialect of medieval Chinese led to the formation of the pronunciation system of old Chinese loanwords and old loanwords in Lingao language, and later absorbed Hainan dialect belonging to Min language).