Portable data line

The utility model discloses a portable data line, which comprises a main circular ring, a movable shaft is rotatably connected inside the main circular ring, the front end of the movable shaft is fixedly connected with a knob, the outer side of the movable shaft is provided with a transmission mechanism, and the transmission mechanism comprises a data line main body wound on the outer side of the movable shaft. A secondary circular ring is movably connected to the position, close to the rear side of the data line body, of the outer side of the movable shaft, a storage mechanism is arranged at the rear end of the secondary circular ring and comprises a storage box movably connected to the rear end of the secondary circular ring, and a rope penetrating hole is formed in the front end of the main circular ring. According to the portable data line provided by the utility model, the purpose of first storage is achieved by manually rotating the knob, the storage box at the side edge can store the large head of the