The folk place names of the Xisha and Nansha Islands are names given by Hainan fishermen in Hainan dialect in the process of fishery production and nautical activities. Most of them are recorded in Manuscripts or oral forms of Genglubus and related maps and books. This paper analyses the cultural background of the generation of the folk place names of the Xisha and Nansha Islands. It figures out the sources of 141 folk place names of islands, shoals and reefs in the Xisha Islands and Nansha Islands and demo...