The invention provides a face analysis-based multi-person image scoring method, system and device and a medium. The method comprises the steps of obtaining a multi-person image, and detecting the position, size and angle of each face in the multi-person image through a face detection algorithm; calculating the face quality score of each face in the multi-person image by adopting a face quality scoring algorithm; calculating the face weight of each face according to the position, size and face quality score of each face in the multi-person image; calculating a face comprehensive score in the multi-person image by combining the face weight and the face quality score of each face; calculating a light source consistency score of the multi-person image by using a light source consistency analysis algorithm; calculating a formation score of the multi-person image by using a formation analysis algorithm; and calculating a total score of the multi-person image according to the face comprehensive score, the light source consistency score and the formation score. According to the present invention, by using the multi-person image final score, the quality of the shot multi-person image can bedetected, but also the assistance can be carried out during multi-person group photo shooting to improve the shooting quality.