The utility model discloses a counterweight-type terminal ball for a tubular busbar, which comprises a terminal ball positioned at the end part of the tubular busbar, and a counterweight is added intothe inner chamber of the terminal ball. In the utility model adopting the technical scheme which in turn makes the utility model simple in structure and novel in design, and adding the counterweightinto the inner chamber of the terminal ball has the advantage of effectively reducing the deflection of an end span tubular busbar, without the need for increase in the elongation of the end of the tubular busbar. Moreover, the manner in which the terminal counterweight ball is arranged is effective in preventing corona from arising in the end part of the busbar.