Disclosed are a method and a device for tracking multiple objects. In the object tracking method, when a plurality of objects are overlapped and thereafter, separated from each other again, color information of the objects, size information of the objects, and shape information of the objects are combined and used in order to maintain tracking consistency in which non-overlapped persons and separated persons coincide with each other. Therefore, while tracking the plurality of objects, each object can be stably tracked even under an environment in which moving objects are overlapped with each other.