The invention relates to a method for rapidly identifying a three-dimension face, which takes side contour line matching as exclusion algorithm, carries out exact matching by utilizing the rigid area of the face and reduces expression influence; the method comprises the steps that: firstly, characteristic points such as the tip of the nose and the inner canthus of a three-dimension face model areextracted, the symmetric face of the face is determined according to the characteristic points, and the side contour line is formed by the crossing of the symmetric face of the face and the point cloud of the three-dimension face. The valuable side contour line is intercepted in the side contour line of the tested face model, the valuable side contour line of the tested face model is matched withthe side contour line of the face model in a stored collection, which is used for matching, by utilizing the iterative closest point algorithm, and part dissimilar models in the stored collection areexcluded according to matching results. Then, the first rigid area and the second rigid area of the tested face are extracted and respectively matched with the remaining models of the stored collection, the matching adopts the improved iterative closest point algorithm based on projection and neighborhood searching, and the marching results are blended by adopting an addition rule. Finally, the identification result is obtained by a nearest neighbor classifier.