The invention relates to a follow-up remote temperature measuring system for a human body. A camera in a human body recognizing and tracking module is mounted on a steering engine I, a steering engineII is rotatably connected below the steering engine I, the camera can move at two degrees of freedom in vertical and horizontal directions through the steering engines I and II, and the steering engines I and II are connected to an steering engine control panel; an infrared temperature sensor in a temperature remote detection module is mounted on the top of the camera to measure the human body temperature remotely in real time, an ultrasonic distance measuring sensor is mounted on the right side of the temperature sensor to acquire a distance numerical value to compensate temperature, and thecamera, the infrared temperature sensor, the ultrasonic distance measuring sensor, the steering engine control panel and a digital display screen are separately connected to a controller. By tracinga subject in real time, the system not only can detect the human body of a static human body remotely, but also can detect the body temperature of the moving human body remotely. The system can compensate temperature according to the distance between the subject and the measuring device at the same time, so that the measuring precision can be increased.