Grounding knife switch

The invention discloses a grounding knife switch, and relates to the technical field of air switch parts. The invention relates to an electric switch, which comprises a base body and a switch body connected to the base body, the base body is used for bearing the switch body, the switch body is used for electric conduction connection or disconnection, the switch body comprises a switch body, a first conductor, a second conductor and a connecting piece, the conductor and the connecting piece are connected or separated through the switch body, and the first conductor and the connecting piece form a first branch; the second conductor and the connecting piece form a second branch circuit, the first branch circuit is correspondingly conducted or disconnected by connecting or separating the first conductor and the connecting piece, and the second branch circuit is correspondingly conducted or disconnected by connecting or separating the second conductor and the connecting piece; the loop resistance of the grounding