Abstract:The quantitative assessment of ecosystem service value (ESV) serves as a scientific basis for guiding rational utilization and effective management of ecosystems by humans. In-depth exploration of its spatio-temporal dynamic evolution is crucial for effectively monitoring regional ecological functions, optimizing ecosystem service management strategies, and proactively responding to future ecological trends. Focusing on Yichang City from 2013 to 2023, this study utilizes land use data and applies the equivalent factor method developed by Xie Gaodi to evaluate the spatio-temporal dynamics of ESV with the city as the research object. Supported by quantifiable data, the study aims to provide guidance for the city’s future economic and ecological sustainable development. During the research period, changes in land use types in Yichang City, particularly fluctuations in the areas of forestland, cropland, and water bodies, were identified as significant factors driving changes in ESV. This paper reveals the spatiotemporal evolution pattern of ecosystem service value in Yichang City, providing a scientific reference for the formulation of regional ecological security strategies and sustainable development plans for Yichang City.