Dongshan County, a county under the jurisdiction of Zhangzhou City, Fujian Province, is located in the southern coast of Fujian Province, between the two special economic zones of Xiamen and Shantou, bordering the Taiwan Strait in the east, facing Taiwan Island across the sea, bordering the South China Sea in the south, near Chaoshan District, Guangdong Province, across Zhao'an County in the west, and Zhangpu County in the northeast, with a total area of 248.34 square kilometers. By 2019, Dongshan County had a total of 7 towns under its jurisdiction. According to the data of the seventh population census, as of 0:00 on November 1, 2020, the permanent population of Dongshan County was 219511.

Dongshan County has a profound history. It is the birthplace of the writer Huang Daozhou, the training ground for Qi Jiguang to fight against the Japanese Zhazhai, the place for Zheng Chenggong and Shi Lang to recover Taiwan, and the birthplace of Gu Wenchang spirit. It has a number of prehistoric relics and characteristic resources such as "Guandi Culture", "Dongshan Land Bridge", "Nandao Language Group", and is known as "China's Excellent Tourism County".