Face in-frame detection method and device in video, electronic equipment and storage medium

The embodiment of the invention discloses a face in-frame detection method and device in a video, electronic equipment and a storage medium. The method comprises the following steps: extracting face feature information from an initial frame in a video, and comparing the extracted face feature information with preset target face feature information to obtain a comparison result; if the comparison result corresponding to the initial frame is that the face of the target person exists, determining the initial frame as a first frame; extracting a face frame position in the first frame and a face contour line in the face frame; from the next frame of the first frame, determining whether the face of the target person exists in the subsequent frame or not frame by frame according to the image content and the face contour line in the face frame position in the subsequent frame; and if a subsequent frame without the face of the target person appears, updating the subsequent frame as an initial frame until the face in-f