The utility model relates to a device of universal meter scale, including fixing base, regulation seat, fixed pin, the fixing base includes support arm and lateral wall, adjust the stationary ladle and draw together support arm and lateral wall, side wall of the fixing seat forms two at least mounting holes, adjust the seat lateral wall form with the accent knothole that the mounting hole corresponds, the fixed pin passes transfer knothole with in the mounting hole one, the fixed pin is fixed fixing base and regulation seat, its characterized in that, the fixing base supports arm -shaped and becomes to be used for the general purpose to show the fixing base support arm through -hole that the line passed, adjust the abutment and prop the regulation abutment brace through -hole that arm -shaped becomes to be used for universal meter scale table line to pass. The utility model is used for the device of universal meter scale shortens battery voltage's of the same kind test time greatly, and convenient operation moreover improves the uniformity of battery.