Against the backdrop of rapid urbanization in China,coastal fishing villages such as Dongcun in Longmen Gang Township,Qinzhou City,are facing population loss and lifestyle changes.This paper provides an in-depth analysis of the history,culture,social structure and geography of Dongcun,revealing challenges such as the decline of the fishing industry and the loss of cultural heritage.The study emphasizes that regional culture is crucial to the sustainable development offfishing villages and proposes innovative conservation strategies aimed at promoting the harmonious coexistence of economic development and cultural heritage.