Introduction to Haitang: Haishu District, geographically known as the Haitang Peninsula, Xiamen contains the area, the ancient part of Haizhou County, Haizhou, in the west of Xiamen Island, south of the Jiulong River estuary, southeast and Xiamen Island across the sea Hope, the west is connected with the Zhangzhou Taiwanese investment zone, the north is connected with Jimei, and the prominent part of the golden triangle of the Xiaquan spring in southern Fujian. The important port of the southern Fujian trade in Fujian is China's main state-level Taiwanese investment zone.