 The study investigates the impact of rapid economic development and urbanization on ecosystem service value, ESV, in the Guangdong Hong Kong Macau Greater Bay Area, GBA, from 1990 to 2030, using a latest annual 30mlucc database, future land use simulation model, and ecosystem service evaluation approaches. The results show that forest and crop land are dominant land use types, built-up land expansion is the clearest process, and reduction of crop land and forest contributes to decreasing total ESV. The study also confirms the effectiveness of the FLUS model in predicting future LUCC. If regional forest and water body reductions are not constrained, the ESV is predicted to decrease to 4962.23x100 million yuan in the 2030s under the current development mode. The study provides a reference for promoting rational land resource use and ecological construction in the GBA, and can help with ecological planning and environmental protection. This article was offered by Jiajong, Shuhua Tsa Li, Chen Chen Zhong, and others. We are article.tv, links in the description below.