Abstract: An increasing proportion of plastic surgery involves facial aesthetic surgery. The midface is the central position of the face and is an important area in facial aesthetic surgery. While malarplasty has had an important influence on the improvement of facial contours. The structure of the zygomatic bone is unique : the locations of the four protrusions, three surfaces, and five edges have distinct projections onto the surface of the skin, and comprise an important structure of craniomaxillofacial region. In this study, we radiographed patients preoperatively with CT imaging according to anatomic research, in order to examine zygomatic bone structure and determine scope of operation. Corresponding makers for the zygomatic bone were selected according to the purpose of operation. We then decided the effect to achieve; facial symmetry is a very important consideration. Malarplasty includes injection filling and prosthetic filling of reduction malarplasty, various types of osteotomy for prominent zygomas, intraoral Lshaped osteotomy, bilateral osteotomy with coronal approach, etc. Complications of osteotomy are infrequent but may lead to hematoma, nerve injury, facial asymmetry, facial parenchymal ptosis, etc.