Abstract: An air venting tube for use with an automobile lamp having a housing formed with an air outlet includes a tubular body, a connecting block and a cover plate. The tubular body has an open first end portion with a front section adapted to be mounted fittingly on the housing at the air outlet so as to be communicated fluidly with the air outlet. The tubular body further has a second end portion with an upper section that extends downwardly at an angle from a rear section of the first end portion, and a lower section having a distal end face with a first circumferential edge part and a second circumferential edge part that cooperatively define an opening. The connecting block is disposed outwardly of the tubular body, and has a planar first end wall with a periphery connected to the first circumferential edge part, and a planar second end wall opposite to the first end wall.