This concrete pump trailer has function of reasonabale instructure,easy operation and maintance.It is widely appliable for constitunous consturction fields of consevancy,electrical power and urban infrastructure construction.It equipped with S tube distribution valve,which is of little pressure and good sealing.The hydraulic system is equipped with the open -circuit,it can adopt Germany Rexrothor and Japan Kawasaki moto pump,and also can use Germany and Weichai diesel pump.They all have the high-low pressure switching function,which greatly expands the use of the same pump.The electronic control system is run by PLC programmable controller,which improve the pump stable performance.