A non-contacted speed-measurement system for high speed moving objects is designed.During one single frame exposure time of CCD,the flashlight flares to a moving object twice and the two corresponding images of the object are captured by CCD in sequence.The movement speed of the object can be determined from the displacement of the images versus their interval time.This system has the advantage of real-time measurement,thus it breaks through the limitation of single point measurement technology in space.Moreover,it can acquire not only the spacial information of one point at different moments,but also the information of different space points at the same moment.