Scars refer to the appearance or histopathological changes of normal skin tissue caused by traumas. 1 Skin infections, burns, or surgeries can produce scars, which are clinically divided into superficial scars, hypertrophic scars, atrophic scars, and keloids. Scars not only impact patients' look, but also restrict patients' normal activities, torturing them both mentally and physically. The socioeconomic progress has come in parallel with the significant improvement in people quality of life, and consequently people are having increasingly higher requirements for their appearance. Scar treatment has emerged from this particular need. Over the past years, autologous fat grafting (AFG) has ushered in vigorous development. Many studies have proven that fat grafting may have a therapeutic effect on scars through lipofilling, immune regulation, angiogenesis, etc.,-2 making it a relatively simple but promising technique. This study has singled out a selected array of randomized controlled studies on scar treatment through fat grating and compared through meta-analysis the effects of fat grafting alone and other therapies combined with fat grating in the treatment of scars, in a bid to provide a basis for the clinical treatment of scars.