The invention provides a wiring terminal busbar and a metering box. The wiring terminal busbar comprises a shell and wiring terminals, and the wiring terminals are fixed in the shell. The upper surface of the shell is composed of a platform and a boss, and the boss is arranged in the middle of the platform. The number of the wiring terminals is N, and are respectively a wiring terminal 1 to a wiring terminal N, wherein the wiring terminal 1 and the wiring terminal N are connected and are respectively fixed at the edges of the two sides of the platform, and the other wiring terminals are connected in pairs and are fixed at the edges of the two sides of the boss. The advantages of the present invention are that the installation is convenient; the wiring terminals are directly connected through the copper bars, so that the temperature rise performance of a device is greatly improved.