The application discloses a kind of retraction of torsion pay-off mechanism, it is related to retraction of torsion equipment technical field.The present application includes box and inner box, the inner wall of the box is fixedly connected on the bottom of inner box, the inner wall of the inner box is provided with drive module, the side of the drive module is fixedly connected with main rotating shaft, the end of the main rotating shaft away from drive module is fixedly connected with rotating shaft, the circumferential surface of the rotating shaft is fixedly connected with traction plate, the side of the traction plate is provided with pay-off reel, the side of the box is provided with reinforcing device.The present application is driven by the driving force of motor and the cooperation of bidirectional reciprocating screw rod, reciprocating silk sleeve one and reinforcing rod etc.assemblies inside reinforcing device, the effect of reinforcing inner box is realized, the stability and durability of structure are improved, it is helpful to reduce the vibration generated due to movement, improve the stability and strength of equipment, ensure the efficiency of equipment pay-off, reduce the work burden of staff.