CPH Switch Laying and Relaying Machine Set is capable of railways of high speed. New-built and already presented railways which for switches laying and relaying. The machine set is composed by ancillary systems of several groups of topside unit, underside unit and temporary rails etc. Each topside unit and underside unit has its own power from each hydraulic system by one imported diesel engine. The machine set has equipped advanced wireless remote control system. When the machine set working, it shall finish switch laying and relaying through elevating, traverse motion, vertical motion and control of switch components. Let/s make one of topside unit and one of underside unit be one group, two groups can work combined and the machine can extend to 12 groups most, and within once time, it could finish about 80m switch laying and relaying work.