With the improvement of science and technology, landscape has become a part of people's enjoyment. With the development of economy and society, the plastic rock rockery with sulphoaluminate cement as raw material is replacing the rockery made of ordinary cement. Because of its excellent characteristics such as early strength, high strength, frost resistance, impermeability, corrosion resistance and low alkalinity, it also saves a lot of manpower and material resources in terms of cost and flexibility, and achieves the effect of low-carbon, ecological and environmental protection. This paper describes the excellent performance of sulphoaluminate cement and the current situation and problems of plastic rock rockery, and analyzes the application and Prospect of sulphoaluminate cement as the basic material in landscape architecture.