The present invention belongs to the technical field of pulse power, and provides a multi-level field distortion gas spark switch which is capable of working at an MV-level voltage with high repetitive frequency in the case of no blowing, thereby greatly simplifying system complexity. The whole of the multi-level field distortion gas spark switch is axially symmetrical. The left side of a switch cathode is connected with a pulse power device, the right side of the switch cathode is provided with openings for fixing insulating support bars; the outer side of a center hole of a switch anode is provided with openings along a peripheral direction for fixing the insulating support bars, the right side of the switch anode is connected with a pulse power device. A trigger disc is arranged in the center hole of the switch anode, series electrode discs and series insulators are arranged on an axle wire of an area between the switch cathode and the switch anode and are arranged in an alternating way along the axial direction, the series electrode discs are metal thin discs with knife-edge-type edges, the series insulators are in a round cake shape, the series insulators have the same size, and the series electrode discs also have the same size. The insulating support bars arranged along the peripheral direction are fixedly connected to form the whole of the multi-level field distortion gas spark switch.