The utility model belongs to the building element testing equipment field, concretely relates to research PE cable and cable clip ball connection performance's test device, push away instrument end plate, parallel hydraulic jack, experimental cable clip ball, pulling test machine and displacement meter including PE cable, braking cable clip ball, top, wherein PE cable both ends set up the pulling test machine, and PE cable middle part district is provided with two of connecting through parallel hydraulic jack and pushes away the instrument end plate, and two to push away the instrument end plate tight through the two experimental cable clip balls tops that set up on the PE cable, the opposite side of one of them experimental cable clip ball still butt has a braking cable clip ball. Experimental cable clip pommel portion is provided with the displacement meter, and experimental cable clip ball and PE cable relative displacement are measured to the displacement meter. Least favorable glide plane when this test device can judge the cable clip ball directly perceivedly and slides, rapid analysis go out the anti -sliding frictional resistance of cable clip ball under different suo li, the different surface contact circumstances, and then extrapolate anti -sliding coefficient of friction and instruct the design of cable clip ball joint point.