Data line capable of self-binding

The utility model relates to the technical field of data connecting lines. The utility model discloses a data line capable of being self-bound. The data line comprises a data line body and a shell, the data line body comprises a connecting wire, and a USB joint and a mobile device joint which are electrically connected with the two ends of the connecting wire respectively. A push rod penetrating out of the shell is connected into the shell in a sliding mode. A horizontally-arranged connecting plate is fixedly connected to the top end of the push rod; a first rack and a second rack which are oppositely arranged in a staggered manner are vertically and fixedly connected to the connecting plate; the first rack is engaged with a first gear rotationally connected to the shell. The second rack is engaged with a second gear rotationally connected to the shell. The first gear is coaxially connected with a first winding wheel, the second gear is coaxially connected with a second winding wheel,a first opening and a sec