Abstract:With the development of social economy, the requirements of ecological environment and landscape effect for the regulation of small and middle rivers are higher and higher, and the ecological slope protection gradually appears in people's vision. The ecological slope protection structure commonly used in Shanghai in recent years is reviewed, and the interlocking block slope protection structure is discussed. Firstly, the structure type of the traditional interlocking block is briefly introduced, and its shortcomings are analyzed. And then the existing problems of the traditional interlocking block are optimized and improved to form a new interlocking block structure. Finally, combined with an engineering example, the practical application effect of the new interlocking block I introduced. Its effect can provide a reference for the design of small and middle river regulation projects in the future.