The utility model discloses an automobile tire life detection system which aims to make up shortages of automobile tire life detection equipment. A detection test bench comprises a frame device, a left X-ray generation device, a motor, a speed reducer, a left driving drum device, a left camera device, a right camera device, a right driving drum device, a right X-ray generation device, a right driven drum device and a left driven drum device, wherein the left X-ray generation device and the speed reducer are fixed on the left of the frame device, the motor is in key connection with the speed reducer, the speed reducer is in key connection with the left driving drum device, the left driving drum device and the left driven drum device are mounted on the frame device in sagittal symmetry, the left driving drum device is connected with the right driving drum device, the right driving drum device and the right driven drum device are mounted on the frame device in sagittal symmetry, the left camera device and the right camera device are mounted in the middle of the frame device in bilateral symmetry, and the right X-ray generation device is fixed on the right of the frame device.