The utility model relates to an over -and -under type pulling equipment that is used for test of intelligent dredging pipe ware experimental, pulley mechanism comprises pulley, the primary shaft and round nut, and the primary shaft is adorned on the support, and pulley dress is on the primary shaft and spacing by the round nut, screw thread transmission comprises screw rod and threaded flange, and the bracket is equipped with at primary shaft both ends, and the layer board is fixed on the screw rod and is held the bracket, threaded flange dress at screw rod both sides parallel connection on the support, a strand guide comprises horizontal direction sleeve pipe and horizontal direction secondary shaft, horizontal direction cover pipe box on the horizontal direction secondary shaft parallel connection on the support, the 2nd strand guide comprises vertical direction sleeve pipe, vertical direction secondary shaft and box, vertical direction cover pipe box on the vertical direction secondary shaft parallel connection on the box. The beneficial effect of the utility model: safe and reliable, simple structure, the stable performance, it is quick to go up and down, and the vulnerable part is changed conveniently, active service pipeline intelligence dredging pipe ware running state can simulate.