The methods of facial liposuction need to be selected in combination with the situation, as follows: 1, slight fat excess: a small amount of lipolysis treatment can be carried out in a minimally invasive way, such as thermal dissolution of fat through fiber optic lipolysis technology, which produces the effect of fat tissue denaturation and absorption reduction, and is applicable to small parts; 2, fat excess: the lower jaw and other obvious sagging parts generally have a larger amount of liposuction, and mechanical negative pressure liposuction can be used to reduce the tissue volume, improve the sagging skin state; 3, sagging skin after liposuction: liposuction treatment may lead to facial depression, wrinkling, sagging, can be combined with fiber optic technology for skin contraction to produce a certain tension to maintain the normal shape of the tissue.