The present invention discloses a tail light structure of a motorcycle/scooter and a motorcycle/scooter equipped with the tail light structure, which can provide a better indication of the rear indicators for safe driving. The tail light structure includes a base and a tail light, and the base can be connected to the rear cover and the fender of the motorcycle as an integrated module to improve rigidity. The base includes a first securing plate, a second securing plate and an extending plate, the extending plate including a first extending portion and a second extending portion, the front of the second securing plate being connected approximately perpendicular to the bottom of the first securing plate, and the first extending portion being perpendicularly disposed below the rear of the second securing plate. The top of the second extending portion is connected to the bottom of the first extending portion, and the second extending portion backwardly tilts at an angle to the first extending portion. The tail light is snugly equipped on the structure constituted by the first securing plate and the second securing plate.