There are two dialects in Yashan Town: local dialect and Xinmin dialect. The word Di Lao only appears in Bobai county, which is the abbreviation of Bobai local dialect. Dilao dialect is a local dialect in Bobai, Guangxi. Dilao dialect is Cantonese with more archaic elements, especially its tone is as high as 10, which is more than the nine tones of Guangzhou dialect, and it is the dialect with the most tones in China. Most of the town speaks old sayings, and a few village committees speak Xinmin dialect.

In the 12th year of Daoguang in Qing Dynasty (1832), the book "Bobai County Records and Etiquette" contains: "There are three kinds of Boyi local dialects: the old saying is that they lived here before the Tang and Song Dynasties; Xinmin dialect came from Jiangsu and Zhejiang in the Yuan and Ming Dynasties, so its pronunciation is similar to that of Jiangsu and Zhejiang. Zhangzhou dialect comes from Fujian province. "

Professor Peking University and Honorary President of the Chinese Language Society Wang Li wrote a letter about the county dialect: "As far as I know, there is no Zhangzhou dialect in Bobai now. It is not known whether there was Zhangzhou dialect in Bobai during the Qing Dynasty. Boyi has three local accents, which seems credible. However, the old saying that people lived here before the Tang and Song Dynasties is unscientific. The old saying that should be said is the native dialect of this city. It says that Xinmin dialect comes from Jiangsu and Zhejiang provinces in the Yuan and Ming Dynasties, which is even more unreliable. I think Xinmin dialect should be Hakka dialect, mostly from Tingzhou, Fujian, or Jiaying, Guangdong. "

The old saying is the ancient dialect of this place. Or as Professor Wang Li said, "Old dialect is the native dialect of our city." The local textbooks "Lovely Bobai" and "Guangxi Encyclopedia Culture" are all written in Bobai dialect. Losers mean adults. Up to now, Cantonese people, Cantonese people still call their elder brothers big brothers, younger brothers skinny and children skinny. It is a mistake to talk about "locals", which should be an old saying.

Xinmin dialect, as its name implies, is the language used by later generations, which is different from the original southern Han people. There are other names such as "Ma Jiehua", "Tucantonese" and "Yahua". This title is popular in Pubei, Luchuan and Bobai counties in Guangxi. The users of Xinmin dialect are Hakkas, who come from the Central Plains and belong to one of the eight ethnic groups of the Han nationality. Xinmin dialect is the original phonology. Xinmin dialect is formed with the historical formation of Hakka ethnic groups, which is a contrast between the old and the new compared with Bobai's "old dialect".