Abstract: A method and device for a surgical guide using augmented reality (AR) is disclosed. The surgical guide method using AR includes obtaining an image showing a surgery subject by using a camera of a wearable device worn by a user, recognizing a marker predefined in the image, determining expression attribute information of a three-dimensional (3D) image model to be projected onto the surgery subject based on the recognized marker, and displaying the 3D image model through the wearable device by projecting the 3D image model onto the surgery subject, based on the determined expression attribute information.