Cable pretension self-adaptive adjusting device

The invention relates to a cable pretension self-adaptive adjustment test device, which comprises a mooring rope rigidity simulation system, a pretightening force adjustment system, a mooring rope towing point, a lower computer and wireless transmission system and an upper computer, and is characterized in that the mooring rope rigidity simulation system is arranged between the mooring rope towing point and the pretightening force adjustment system and is connected with the mooring rope towing point and the pretightening force adjustment system through a mooring rope; the pretightening force adjusting system is connected with a cable through a tension sensor, is used for testing the tension of the cable, and is connected with the upper computer and the lower computer through the wireless transmission system, and the upper computer is connected with a servo motor of the pretightening force adjusting system, and is used for controlling the action of the servo motor so as to control the tension of the cable. The