Waterfront green space has multiple values. Reasonable planning and construction of waterfront green space will provide an ecological and livable waterfront space in Guangzhou, which is densely populated with rivers and high-density urban construction. The development of ecological belt planning provides an opportunity for the construction of waterfront green space, and the clarification of the development of planning policy and management of waterfront green space in Guangzhou can provide policy reference and research support for the subsequent construction of ecological belt in Guangzhou. This study takes waterfront green space related planning policy documents from 2000 to 2020 as the research object, analyzes and compares the development history of waterfront green space construction in Guangzhou through statistical classification, stage classification and text analysis. The study finds that during the 20 years the concept of waterfront green space has been gradually improved, the construction content has been gradually comprehensive, and the planning scope is extended to all rivers in the city, but implementation guarantee measures need to be strengthened.