Recent research highlights the significant impact of urbanization on tropical cyclone rainfall in South China. Analyzing data from 366 historical tropical cyclones between 1979 and 2018, the study reveals that while cyclone frequency remained stable, regional precipitation intensity increased substantially. Mean terrestrial precipitation rose by 0.14 mm per event per year, with extreme precipitation escalating more sharply at 0.43 mm per 3 hours per year. This intensification plateaued after 2000 but remained elevated compared to earlier decades.