The invention relates to a method for the private customizing of facial masks. The method comprises the following steps: Step S1, scanning a face by using a facial scanner to collect information, and obtaining three-dimensional coordinates of the three-dimensional space, skin information and external information of the human face; Step S2, analyzing the information collected by the facial scanner through a data analyzer which analyzes facial image information through analyzing the facial three-dimensional coordinate data on one hand and the skin information on the other side, and classifying the facial image information; Step S3, selecting corresponding materials according to a face image represented in Step S2, mixing the materials in a stirring device; Step S4, injecting the materials in Step S3 into a face forming device; Step S5, delivering a mask in the face forming device in the Step S4 into a printing device, and punching the facial mask. The facial masks are custom-made, healthy, safe, and suitable for different face shapes, so that the method has wide application prospect.