The invention discloses a wrapping machine for a cable production line, and relates to the field of cable manufacturing devices. The wrapping machine comprises a rack, and a wrapping device, a belt releasing transmission mechanism, a wrapping transmission mechanism and a speed measuring device are installed on the rack. The wrapping device comprises a central pipe, a hollow belt releasing shaft and a hollow wrapping shaft which are concentrically arranged. A wrapping disc is fixedly arranged at one end of the wrapping shaft. The belt releasing shaft is arranged in the wrapping shaft, and one end of the belt releasing shaft is detachably connected with a belt coil. The central pipe is arranged in the wrapping shaft in a penetrating mode, and a mold core is fixedly arranged in the central pipe. The belt releasing transmission mechanism comprises a motor a for driving the belt releasing shaft to rotate. The wrapping transmission mechanism is used for driving the wrapping shaft to rotate.The speed measuring device is used for detecting the advancing speed of a to-be-wrapped core wire. The wrapping machine further comprises a controller, and the speed measuring device, the belt releasing transmission mechanism and the wrapping transmission mechanism are all electrically connected with the controller. The wrapping machine can automatically and accurately control and complete adjustment of the wrapping pitch and adjustment of the tension, and can meet the use requirements of wrapping in various technological processes in cable manufacturing.