Moustache is a normal physiological phenomenon and can be permanently removed through laser hair removal and other photoelectric treatments. Laser hair removal is a process whereby a specific wavelength of laser light is applied to the hair follicle, destroying the structure of the hair follicle so that the hair cannot grow, thus achieving the goal of permanent hair removal. However, since laser is only effective on hair follicles during the anagen phase, multiple treatments are generally required to achieve the desired results. Currently commonly used in hair removal laser: semiconductor laser, ice point hair removal, YAG laser, etc., can be through the thermal effect of laser, no matter which kind of laser to take off, need to strengthen the protection of local skin after treatment, avoid water, avoid rubbing, mainly to prevent secondary bacterial infection and other complications. Patients who are willing to be treated should go to regular medical institutions, follow the doctor’s instructions for treatment, and scientific care after treatment.