There are three main methods of autologous fat filler for the face, namely, normal fat grafting filler, nano fat filler, and autologous stem cell fat gel filler. Due to the different filling methods, the specific time of maintenance is also different. The survival rate of ordinary fat filler for the whole face is about 50%, the survival rate of nano-fat filler is about 60%, and the survival rate of self-stem cell fat gel filler is about 80%. Due to the different survival rates, the maintenance time also varies. Ordinary fat filler can last about 1-2 years, nano fat filler can last 3-4 years, and stem cell fat gel filler can last more than 5 years. In addition, the specific maintenance time is also related to the usual care and maintenance level of the candidates. After the autologous fat facial filler, candidates need to pay attention to the following aspects: 1. avoid chewing and sneezing; 2. avoid direct pressure on the autologous fat filling site, if the fat is not alive, pressing the filling site will easily cause uneven skin surface; 3. after the autologous fat filling face, tiny wounds such as needle eyes can appear, in order to prevent wound infection, the local area should be kept clean; 4. the first three days after surgery 3 days after surgery, cold compresses can be applied appropriately, and the cold compress time is 30 minutes each time and 3-5 times a day; hot compresses can be applied 3 days after surgery to accelerate the disappearance of edema.