High-voltage DC bus box and high-voltage DC bus device

The invention discloses a high-voltage DC bus box and a high-voltage DC bus device. The high-voltage DC bus box comprises at least one strip-shaped box body. A bus metallic bar is disposed in the strip-shaped box body along the length direction. An opening is disposed on one of both sides of the box body along the length direction and is used by wires to be connected an air switches. The bus metallic bar is provided with a wiring end plate and the wiring end plate extends, in the horizontal direction, to the side, where the opening is not located, of the box body to be out of the box body. The bus metallic bar is used as a connecting end connected with air switch wires such that a connecting point is transformed to a connecting line. As a result, problems of complex wire arrangement and tangled wire connection in the prior art are solved and the air switch wires are connected in a tidy and ordered manner. The box bodies can be superposed in order that a large amount of wires can be arranged.