Journal of Global Humanities and Social Sciences 2737-5374 2737-5382 BONI FUTURE DIGITAL PUBLISHING CO.,LIMITED https://ojs.bonfuturepress.com/index.php/GHSS/article/view/383 3 3 2022 2025-07-28 Xiaobo Wu With the development of information technology and big data technology, the rise of geospatial big data represented by Point of Interest (POI) has driven the innovation of urban spatial structure research. Taking Zhanjiang as the research area, this paper divides Zhanjiang into six functional areas, and uses more than 119,900 pieces of POI industry classification big data to analyze the internal spatial structure types of Zhanjiang from the perspective of functional area distribution and regional cluster distribution, so as to provide scientific reference for the sustainable development and optimization of Zhanjiang urban space. POI,Zhanjiang,functional area 10.47852/bonviewGHSS2022030311