Liposuction is a simple technique, but it is not easy to do it well, not extracting fat is a victory. The most important point is to have a three-dimensional spatial anatomical concept, especially the intermuscular groove, the bony bulge area, so that the postoperative skin follows the anatomical characteristics and the lines are smooth and natural in form (upper arms, upper abdomen, back, buttocks). The second is to retain enough subcutaneous fat, usually about 5-10mm thick, to prevent skin adhesions with deep muscles from causing depressions, which requires a strict grasp of the needle and liposuction levels. The third one is to pay attention to female body features, especially the waist, buttocks and thighs, which should be soft and plump and elastic instead of rough and hard and thin and dry. This requires attention to maintain not only the superficial layer of fat but also the deep layer of fat to prevent the problem that the subcutaneous fat is evenly distributed but the appearance is still uneven (waist, buttocks, thighs, calves, face and neck). Liposuction and buttock shaping should fully express health and perfection and be a unity and harmony of the two. Neither should the patient’s slimming requirements be met to the neglect of healthy aesthetic appearance, nor should the anatomical signs be deliberately sought to the neglect of the patient’s individual demands, otherwise the buttocks will be distorted after liposuction and there will be no aesthetic appeal. Liposuction is performed according to the normal signs of a fit human body, with appropriate thickness, perfectly revealing the joint sockets and crease lines buried by fat. However, it should be noted that too much liposuction should not be applied to the inferior gluteal crease area. Excessive liposuction here will cause the buttocks to sag and lead to an aging appearance, and fat transplantation is needed to fill the lateral part of the inferior gluteal crease to rebuild the buttock support and rejuvenate the buttocks.