The application relates to a hand chain locking structure which comprises a locking main body and an elastic piece, the locking main body is provided with a locking hole, the locking hole is used for realizing the connection between the locking structure and a chain, the locking main body comprises a main body part and a locking part, the main body part and the locking part are rotationally connected, the main body part and the locking part are connected to form the locking hole, when the locking part rotates towards the main body part, the locking hole is opened, the locking part is connected with a driving block, the driving block and the locking part are located on the same side of the main body part, the elastic piece is arranged on the locking main body, and the elastic piece is used for driving the locking part to reset so that the locking hole is closed. The application has the effect that various user groups can more smoothly unlock the locking structure.
