Abstract: A system and method for road surface defects detection based on infrared imaging technology, while the system comprising: a detection vehicle traveling on a detected road surface; a pan and tilt provided on the detection vehicle and rotate horizontally and vertically with respect to the detection vehicle; an infrared camera detachably set on the pan and tilt, which is used to capture infrared thermal images of the detected road surface, and to output inferred thermal image digital signals about the inferred thermal images including temperature values of the detected road surface; a main controller provided on the detection vehicle and connected to the pan and tilt and the infrared camera respectively, which is used to control capture actions of the infrared camera, to control angles of the horizontal and vertical rotations of the pan and tilt, and to transform the infrared thermal image digital signals output from the infrared camera into digital signals to be used in standard network transmission; and a data