Abrasion test device for submarine cable outer sheath and use method

The invention discloses an abrasion test device for a submarine cable outer sheath and a using method. The abrasion test device comprises a U-shaped frame, an experiment groove and a C-shaped frame, wherein the experiment groove and the C-shaped frame are installed on the inner side of the U-shaped frame. An experiment roller is rotationally connected in the experiment groove; a simulated reef assembly is arranged on the experiment roller, and the simulated reef assembly comprises a plurality of gravel assemblies; a submarine cable sheath to be tested is mounted on the C-shaped frame; the C-shaped frame is driven by external force to move towards the experiment groove, so that the submarine cable sheath to be tested rubs with the simulated reef assembly on the experiment roller, and an abrasion test is carried out. The device can simulate the frictional wear condition of the to-be-tested submarine cable sheath by the simulated reef assemblies made of different materials, and can further improve the experiment