Dongtai dialect belongs to Tongtai dialect of Jianghuai Mandarin and Taizhou dialect circle. Taizhou dialect circle, generally known as Tairu (Taizhou-Rugao) dialect film or Tongtai (Nantong-Taizhou) dialect film academically, is a sub-region of Xiajiang Mandarin (also known as Jianghuai Mandarin), including Taizhou, Jiangyan, Taixing, Xinghua, Hai 'an, Rugao, Rudong (Northwest), Dongtai and Dafeng, covering Taizhou, Nantong and Dafeng. Its geographical location is the sea in the east, the Yangtze River in the south, the Huaihe River in the north and Yangzhou in the west. Historically, this area was under the jurisdiction of Taizhou. After liberation, the prefecture-level Taizhou area was administratively revoked. Hai 'an and Rugao (including Rudong) in the southeast merged into Nantong, Dongtai and Dafeng in the northeast merged into Yancheng, and Taizhou itself and the western counties of the original Taizhou area merged into Yangzhou, becoming the county-level areas of Yangzhou. Taizhou dialect circle has been on the edge of Yangzhou, Nantong and Yancheng for a long time since Taizhou was abolished. Without the support of the central city, its culture also shows signs of decline. Fortunately, in 1996, Taizhou was separated from Yangzhou and re-upgraded to a prefecture-level city. After 50 years of silence, a prefecture-level city finally speaks Taizhou dialect. But the situation is still not optimistic enough. Taizhou is located in the westernmost part of the whole Taizhou dialect circle, and its west side is close to Yangzhou Jiangdu, which speaks Yangzhou dialect. Taizhou dialect circle can only expand eastward, such as the eastern beach area of Hai 'an, Dongtai and Dafeng, because the east is the sea and there is no other dialect to contain it. But these areas now belong to Nantong and Yancheng, and such administrative divisions are disintegrating their centripetal force to Taizhou dialect circle all the time. 65438-0996 Jiangsu Province applied to the state to upgrade Taizhou (formerly Yangzhou), Dongtai (formerly Yancheng) and Suqian (formerly Huai 'an) to prefecture-level cities. As a result, Taizhou and Suqian were promoted successfully, and Dongtai was put on hold. It is said that the name of Dongtai comes from "Dongtai", which means "Dongxiang in Taizhou". Later, both Hai 'an and Dafeng (formerly known as Taipei) left Dongtai. Zhang Shicheng, the "King of Wu" who competed with Zhu Yuanzhang in the late Yuan Dynasty and the early Ming Dynasty, and Wang Gen, the founder of Taizhou School in the Ming Dynasty, all said that they were from Taizhou, but they were actually from Dongtai (Dafeng) now, because Dongtai belonged to Taizhou at that time. The success of Taizhou's land promotion has restored Taizhou to the western counties of Taizhou dialect circle; However, the eastern counties in Taizhou dialect circle continue to rely on others because Dongtai failed to promote land. Dongtai dialect is divided into Taicheng dialect, Didong dialect, Xidi dialect and Tang Jie dialect. Among them, Taicheng dialect and Xidi dialect are greatly influenced by Huaiyang. Tang Jie dialect is greatly influenced by Wu dialect. Dongtai dialect still retains many old words.