Abstract: A method of surveillance by face recognition is disclosed. The method includes the steps of: first building up the face recognition database library in a storage medium comprising a plurality of face images; taking dynamic videos via an image capture device and showing the dynamic videos in the display device; performing face recognition to find the target face image in each dynamic video, and then determine the target face image as the matched or mismatched face image by comparing the target face image with the face images in the face recognition database library; and finally marking the matched and mismatched face images by different colored frames, respectively. Therefore, the method of the present invention can dynamically mark the target face images by images, colored frames and/or text to provide a solution of surveillance with high safety and efficiency.