The real-time image tracking system based on the DSP (TMS320C6415) for moving targets using charge coupled plane array imaging device (CCD) is discussed.The principle diagram and block diagram is given,and the image acquisition and image processing system are discribed.The momentpreserving thresholding method and the adaptive thresholding method based on gradient are used to pick up targets, and the mass centroid tracking algorithm based on orthogonal projection and linear-fitting predicting approach are used to track targets. The experimental results show that the algorithm is feasible and practical.