In engineering construction, the application range of cold-formed steel sheet piles is relatively narrow, and most of them are used as supplementary materials. Hot-rolled steel sheet piles have always been the leading products in engineering applications. Cold-formed steel sheet piles are formed by continuous rolling by a cold-formed unit, and the side locks can be continuously overlapped to form a steel structure body of a sheet pile wall. Cold-formed steel sheet piles are made of thin plates (common thicknesses are 8mm to 14mm) and processed by cold-formed forming units. Its production cost is lower and the price is cheap, and the fixed-length control is more flexible. However, due to the simple processing method, the thickness of each part of the pile body is the same, and the section size cannot be optimized, which leads to an increase in the amount of steel used; the shape of the locking part is difficult to control, the joints are not tightly buckled, and the water cannot be stopped; limited by the capacity of cold bending processing equipment, only It can produce products with low strength grade and thin thickness; cold-formed steel sheet pile features: according to the actual situation of the project, the most economical and reasonable section can be selected to achieve the optimization of engineering design, which saves money compared with hot-rolled steel sheet piles of the same performance. The material is 10-15%, which greatly reduces the construction cost.