The invention discloses a collaborative virtual and actual sheltering treatment method in a shared enhanced real scene. The collaborative virtual and actual sheltering treatment method comprises the following steps of: generating an enhanced real scene; estimating the position of a point to be observed; projecting both a virtual object and a real object on an observation plane of the point to be observed, wherein the sheltering relationship between the virtual object and the real object is to be analyzed; taking the point to be observed as an initial point; taking a ray vertical to an imaging plane to scan the observation plane along the horizontal direction; carrying out sheltering encoding according to a successive sequence that the ray touches two sides of the virtual object and two sides of the real object when the ray scans the observation plane; determining whether the virtual object and the real object which are observed from the point to be observed are in either a sheltering relationship or a non-sheltering relationship according to the difference among sheltering codes; and specifically judging that the virtual object shelters the real object or the real object shelters the virtual object so as to reduce wrong judgment. According to the collaborative virtual and actual sheltering treatment method in the shared enhanced real scene, the quick judgment of the spatial sheltering relationship between the virtual object and the real object in a new video sequence region is achieved, and the accuracy in the judgment of the virtual and actual sheltering relationship in the enhanced real scene is improved.