The utility model discloses a
bus connector used for a GIS switch cabinet, comprising conductors arranged in a cross shape, the conductors comprise a first conductor, a second conductor, a third conductor and a fourth conductor, the first conductor and the third conductor are distributed oppositely, the second conductor and the fourth conductor are distributed oppositely, and the first conductor and the second conductor are distributed oppositely. A screw rod is connected between the first electric conductor and the third electric conductor and between the second electric conductor and the fourth electric conductor, limiting rings are formed on the screw rods, and springs are arranged between the limiting rings and the first electric conductor and between the limiting rings and the second electric conductor. The limiting ring is formed on the screw rod, the spring is arranged between the limiting ring and the electric conductor, the electric conductor is expanded by utilizing the movement of the screw rod, controlling the position of the spring and utilizing the elastic force of the spring, so that the boss on the outer surface of the
bus connector is tightly contacted with the inner side of the
bus for a long time without loosening, and the stable conductive performance between the boss and the bus is ensured.