The invention relates to a front face determining method and device, and belongs to the field of electronic technology. The method comprises that a face image to be determined is obtained; left side face/front face discrimination is carried out on the face image based on a pre-stored left side face/front face classification model to obtain a first discrimination result of the face image, and right side face/front face discrimination is carried out on the face image based on a pre-stored right side face/front face classification model to obtain a second discrimination result of the face image; and if both the first discrimination result and the second discrimination result show face images, the face image is determined to be the front face image, and if the first discrimination result shows a left side surface image or the second discrimination result shows a right side surface image, the face image is determined not to be the front face image. According to the method and device, the face image processing efficiency can be improved.