A vehicle light assembly includes a lens unit, a lens cover, a heat dissipation seat, a clamp and a plurality of fasteners. The lens cover is connected to the lens unit. The heat dissipation seat is disposed rearward of the lens unit and the lens cover. The clamp is connected to a front side of the heat dissipation seat and defines a clamping space receiving the lens unit and the lens cover. The clamp clamps tightly the lens cover against the lens unit. The fasteners are threaded forwardly into the lens cover from a rear side of the dissipation seat.