The fire needle therapy has the functions of warming and strengt hening yang qi, generating muscle and astringing sores, dispersing cold and removing dampness, expelling wind and relieving itching, dispersing knot and detumescence. It is mostly used in the treatment of dermatological diseases in clinic. It can not only effectively reduce the itching, pain and other subjective symptoms of patients, but also has the advantages of simple operation method, easy to carry operation needle, definite curative effect, small side effects and high safety. This article reviews the mechanism of action of fire needle therapy and its specific application and efficacy in various skin diseases, in order to provide some reference for the treatment of skin diseases.