The rounded apical vowels in Huang-Xiao(黄孝)dialects of Jianghuai(江淮)mandarin include two types:the front apical vowel μ and the back apical vowels μ.

Alternation between characters which were velar initials and labial initials respectively in Middle Chinese is found in excavated Chu documents of the Warring State Period,which indicates that labialized velar initials became labial initials when followed by back vowels in ancient Chu dialect sometime approximately between the seventh to the fifth centuries BC.

Seen from the form,the vowel raising of Wenshui dialect is characterized by raising and further raising,and the further raising is menifested by the apicalization of high front vowel and diphthongization of high back vowel.

This paper is to introduce the history and achievements of research on tongue moving types, the frequencies of rolling, folding, twisting, clover leaf and pointed tongue in different human groups and current studies by Chinese researchers.

A sample of 309 middle school students(120 males,189 females)of Mulam was investigated on five tongue moving types including tongue rolling,tongue folding,tongue twisting,pointed tongue and clover-leaf tongues.

The results revealed as follow: 1) No significant sexual difference was found in the frequencies of five tongue moving types;2) Some interactions occured between rolling tongue gene and pointed tongue gene,and also interaction occurred between rolling tongue gene and clover-leaf tongue gen.