The main stream of Dongjiang River and its tributaries meander through it, dividing nave into five parts: the main part of Huang Xinwei is about 42.4 square kilometers, long and narrow, about 13 kilometers from east to west, and about 3 kilometers from north to south. From west to east, there are Dongjin, Doulang, Xu Zhen, Dong Bo, Wu Jiayong, Hotan, Yuan Jiayong, Feng Chong, Zhancui, Sanyong and Xu Zhen on both sides of the highway. The part of Chajiao Village in the west, with an area of about 7 square kilometers, is adjacent to Machong in the west, the main stream of Dongjiang in the north, and the cross-flow seawater channel in the east, which is connected with Dongdou and Doulang by Chajiao Bridge. To the south, it faces Xialu and Malicun across the river. Xiama Temple in the southwest is a Jiang Xindao, which includes three administrative villages: Xialu, Mali and Sixiang, with a total area of 5.4 square kilometers. The terrain is strip-shaped and extends outward. According to the northeast-southwest trend, it surrounds the transshipment seawater channel and the Zhongdian waterway, and connects to the east through the Xialu Bridge. Li Jiao and Zhouguo in the south are located at the junction of nave, Wangniudun and John Wan, covering an area of about 4 square kilometers. It is adjacent to Zhongdian Waterway in the north, connected to the town by Zhongdian Bridge, and 107 National Road runs through it, which is the gateway for Tang Zhong Town to enter and leave Guancheng. Jiangnan community in the north (including Maizhou) is the only piece of land located in the north bank of Dongjiang River in Tang Zhong Town, with an area of only 0.8 square kilometers. It is bordered by Nizi, Jiuyu and Dadun in Zengcheng, connected with Zhongwei Douchi Island by Jiangnan Bridge, and the 107 National Road runs through it. Located in the transportation hub, it is the "North Gate" from Dongguan to Guangzhou.