In order to reduce the harm and hidden danger of the horizontal swing of the deep-sea mining pipeline， this paper proposes a set of suppression scheme of the horizontal swing of the deep-sea mining pipeline. The executive parts of the scheme are mainly composed of nylon pull rope， hydraulic energy exchange component and fixed pulley component. Nylon pull rope can provide the tension to restrain the lateral swing and reduce the amplitude of the lateral swing； the hydraulic energy exchange component can consume the kinetic energy of the lateral swing and convert it into electrical energy； the fixed pulley component can adjust the force of the pull rope on the pipeline， so that it is more conducive to restrain the lateral swing of the pipeline. The experimental results show that the working principle of the scheme is feasible.