The invention relates to the computer video processing technology, in particular to a visual target tracking method based on a credibility combination map model. The method comprises the following steps that (1) a training database is established; (2) features of the training database are extracted, and a two-dimensional disjunction unit classifier and a two-dimensional disjunction classifier are trained; (3) a credibility combination map of first-frame target objects is established; (4) features of a current-frame background frame are extracted; (5) a credibility graph is obtained; (6) a target is positioned, and a plurality of candidate windows are obtained; (7) a credibility combination map of the candidate windows is matched with the saved previous-frame credibility combination map, and optimal target location information is obtained; (8) an updating sample is obtained by means of combination map matching, and the classifiers, the credibility map model, the state of a tracker and the like are updated every five frames; (9) the step (4), the step (5), the step (6), the step (7) and the step (8) are repeated till a video is over. By means of the visual target tracking method based on the credibility combination map model, the problem of target drifting can be effectively restrained in the computer visual target tracking process, and therefore the stability of the tracker is improved.