The area borders the Madou Branch Office at Pitouxian in the east, separated by salt pans and fish ponds in the west, faces the Taiwan Strait and is connected to Xinhua Branch Office by Zengwen River in the south, and adjacent to Xinying Branch Office in the north by Jishui River. It is 19km from east to west, 29km from north to south, with an irrigation area of 10,027 hectares