Catheter leakproofness test method

The invention discloses a conduit leakproofness test method. The conduit leakproofness test method comprises a conduit leakproofness test process under the condition of realizing pressure stabilization or generating pressure impact on a conduit pipeline based on a conduit leakproofness test system. The pressure machine pressurizes water and conveys the water into the conduit pipeline through the high-pressure water pipe, after the preset pressure is reached, the pressure stabilizing valve is closed to stabilize the pressure, whether the butt joint of the conduit screw thread connector on the conduit pipeline leaks or not is observed, and the conduit pipeline leakproofness test under the pressure stabilizing condition is achieved; the high-pressure water body in the high-pressure container impacts into the conduit pipeline in a pressure stabilizing state through the variable-pressure test pipe to generate pressure impact, so that pressure impact on one end or two ends of the test conduit pipeline is realized,