In general, zygomatic bone plastic surgery methods include grinding, chipping and bone repositioning. Only by combining these methods can we achieve good zygomatic bone plastic surgery results. Facial sagging after zygoma plastic surgery is usually caused by the following reasons. Due to poor expert skills, strength and equipment of beauty institutions, complications occur and facial sagging occurs. During the surgery, the soft tissue was peeled off, causing the soft tissue attached to the bone surface to reattach to the lower part of the original position due to gravity, resulting in facial sagging. Structural changes lead to smaller dimensions of local tissue, causing sagging. The tissue will sag after swelling and deswelling. In addition, if the fixation is not good, the position of the zygomatic bone is fixed low or the bite force is reduced, it will aggravate the original problem. Sagging.