The invention relates to a soft platoon made up of concrete block and civil gratings or civil meshes, which has function for protecting the bank and slope. The invention pours the concrete directly or adheres the preprocessed blocks and fixes them on the civil gratings or the civil meshes with type of block, thus it guarantees the durability and the security of the platoon. The platoons are connected together by the hook embedded in the block or the civil gratins and the civil meshes are connected or welded together with clamp type; the concrete can be processed into the one with low alkali density and with connected aperture, which can be filled with soil for the plant to grow, then it is formed into green project which has protection function to bank.