A structure of a terminal connector for a regulator which controls output of a generator provided to a motorcycle, the terminal connector connecting the regulator and a plurality of separately arranged external terminals (117, 122) with bolts and nuts, wherein the terminal connector includes a plurality of terminal units (66A to 66E) to each of which one of the external terminals (117, 122) is connected, the terminal units (66A to 66E) are each formed as a support base for screw-tightening to which one of the external terminals (117, 122) is connected by screwing, and at least two of the terminal units (66A to 66E) are different from each other in width, wherein the plurality of terminal units (66A to 66E) are: a cathode-side connecting unit to which the external terminal at a cathode-terminal side of a battery is connected; a ground-side connecting unit which is connected to a ground, and to which the external terminal at an anode-terminal side of the battery is connected; and three generator-side connecting units (66B to 66D) to which the external terminals at a side of the generator are connected, characterized in that the terminal units (66A to 66E) are provided at one end of the regulator and are arranged in a width direction thereof, and an identification is marked on each of the terminal units (66A to 66E), wherein female screws for screw-tightening the external terminals (117, 122) to the terminal units (66A to 66E) are formed in the terminal units (66A to 66E), a center of the female screw for the cathode-side connecting unit is arranged at a position offset from a center of the width of the cathode-side connecting unit in a width direction, centers of the female screws for the ground-side connecting unit and the generator-side connecting units (66B to 66D) are arranged at centers of the widths of the ground-side connecting unit and the generator-side connecting units (66B to 66D), the external terminal for connection to the cathode-side connecting unit comprises a connection part having an asymmetrically forked shape, and each of the external terminals for connection to the ground-side connecting unit and the generator-side connecting units (66B to 66D) comprises a connection part having a symmetrically forked shape. a cathode-side connecting unit to which the external terminal at a cathode-terminal side of a battery is connected; a ground-side connecting unit which is connected to a ground, and to which the external terminal at an anode-terminal side of the battery is connected; and three generator-side connecting units (66B to 66D) to which the external terminals at a side of the generator are connected, characterized in that the terminal units (66A to 66E) are provided at one end of the regulator and are arranged in a width direction thereof, and an identification is marked on each of the terminal units (66A to 66E), wherein female screws for screw-tightening the external terminals (117, 122) to the terminal units (66A to 66E) are formed in the terminal units (66A to 66E), a center of the female screw for the cathode-side connecting unit is arranged at a position offset from a center of the width of the cathode-side connecting unit in a width direction, centers of the female screws for the ground-side connecting unit and the generator-side connecting units (66B to 66D) are arranged at centers of the widths of the ground-side connecting unit and the generator-side connecting units (66B to 66D), the external terminal for connection to the cathode-side connecting unit comprises a connection part having an asymmetrically forked shape, and each of the external terminals for connection to the ground-side connecting unit and the generator-side connecting units (66B to 66D) comprises a connection part having a symmetrically forked shape.