The invention discloses a stranding device of a stranding machine, which comprises a machine body, a transmission unit, a stranding device and an operation key, wherein two sides of the top of the machine body are respectively welded with suspension devices, the middle part of the machine body is welded with the linking device, the linking device is welded with a machine cover, two sides of the machine cover are respectively provided with glass windows, two sides of the bottom end of the machine cover are provided with handles, one side of the top end of the machine body is bonded with a display screen, control keys are arranged below the display screen, two sides of the bottom end of the machine body are in threaded connection with a heat dissipation cover through screws, heat dissipationopenings are formed in the heat dissipation cover at equal intervals, the periphery of the bottom end of the machine body is welded with a supporting device, the transmission unit is installed on theinner side of the machine body and is in transmission connection with the stranding device, the bottom end of the stranding device is welded to a working platform, the bottom end of the inner side ofthe machine cover is welded to the containing groove, the inner wall of the machine body is in threaded connection with a lighting lamp, the motor is welded to a shaft, the shaft is in buckled connection with a gear, and the other end of the shaft is welded to a first abutting block. The device is compact in structure, convenient in function, easy to operate and high in practicability.