The utility model provides a high-voltage switch, which comprises conductors and an arc extinguisher, the conductors comprise a first conductor and a second conductor, the first conductor is connectedwith an overhead line, and the second conductor is connected with a cable line; the first electric conductor and the second electric conductor are communicated through an arc extinguishing device, and the arc extinguishing device is provided with a closed first position and an open second position. According to the technical scheme of the utility model, the problem of high risk of a live lap joint or disconnection operation mode of a power distribution line in the prior art is effectively solved.