Facial fat grafting has gained fame due to its small incision and good results, and many beauty seekers think that it is very simple to do facial fat grafting, similar to injections. This is a very simplistic understanding of fat grafting. As an emerging cosmetic surgery, facial fat grafting is first of all a precise “surgery”, and injections are only one of the essential operations. The procedure is roughly divided into three steps: obtaining fat tissue, processing the fat tissue, and injecting the fat particles into a predetermined area. Facial fat transfer surgery takes a long time, usually 2 to 3 hours. Several of the surgical steps involved require “injections”. The “injection”, which is of most concern to the patient, is the injection of the processed fat particles into a pre-determined area. The needle we use here is a special fat injection needle with a blunt tip of different diameters and lengths depending on the filler area. There is a big difference between this step and ordinary injections. It takes a long time of practice for the plastic surgeon to master this skill. It is more like an art of micro sculpture, which requires long-term accumulation and repeated refinement to reach the state of perfection.