The invention belongs to the field of electric wiring auxiliary devices, particularly discloses an aerial wiring device, and relates to a testing wire winding device. The testing wire winding device comprises a multi-stage sleeve pipe. The multi-stage sleeve pipe comprises multiple wire winding pipes different in outer diameter, and each wire winding pipe is cylindrical. The outer diameter dimensions of the wire winding pipe, from one side to the other side, in the multi-stage sleeve pipe are increased stage by stage. In every two adjacent wire winding pipes, the wire winding pipe with the smaller inner diameter can be sleeved in the other wire winding pipe. A half shaft is mounted on the outer side of each of the two wire winding pipes, on the outermost side, of the multi-stage sleeve pipe, the two half shafts are each rotationally mounted in a same-side support, and end plates are integrally arranged at the two ends, deviating from each other, of the two wire winding pipes in the radial direction of the wire winding pipes. In every two adjacent wire winding pipes located between the two end plates, a partition plate is integrally arranged on the outer side of the wire winding pipe with the larger outer diameter in the radiation direction of the wire winding pipe.