Elevator accompanying cable testing device

The embodiment of the utility model relates to the technical field of cable testing, in particular to an elevator accompanying cable testing device which comprises a first belt wheel, a second belt wheel, a first synchronous belt, a first fixing piece, a second fixing piece, a third fixing piece and a fourth fixing piece. The first belt wheel and the second belt wheel are in transmission connection with the first synchronous belt; the first synchronous belt is provided with a first section, a second section, a third section and a fourth section which are sequentially connected end to end, the first section is fixed to the first fixing piece, the second section is attached to the outer wheel face of the first belt wheel, the third section is fixed to the second fixing piece, and the fourth section is attached to the outer wheel face of the second belt wheel; the third fixing piece is located on the side, away from the third section, of the first section, and the fourth fixing piece is located on the side, away