The invention discloses a method for laser engraving of a nasal prosthesis. The nasal prosthesis is fixed, the nasal prosthesis and a laser engraving range are within the same straight line range, nasal prosthesis model data are imported into a laser device, to-be-eliminated nasal prosthesis eliminating data in the model data are selected, and according to the eliminating data, the laser device emits lasers to carry out layer peeling on the nasal prosthesis until the nasal prosthesis forms a preset shape. By using the laser device to carry out the layer peeling on the nasal prosthesis, unneeded parts of the nasal prosthesis can be accurately eliminated, needed parts can be reserved, the processing accuracy of a laser beam is much higher than the processing accuracy of an operating knife, and the interference of human factors does not exist. If the model data and the eliminating data are accurate enough, the nasal prosthesis can be accurately eliminated, and the nasal prosthesis can be in accordance with the preset shape so that the reserved nasal prosthesis can be perfectly fitted on the nose. The fitting degree of the nasal prosthesis and the nose is greatly improved, and the post-operation risk is lowered. The method does not depend on the professional eliminating skill of doctors, the doctors with general operational ability can carry out implementation, and the implementation difficulty of the method is lowered.