Extra acupoints seldom attract attention on account of the efficacy; however, extra acupoints in truth cannot only be selected in clinical practice alone, but also work with the traditional acupoints on the tweleve channels for the best efficacy.The model combining extra acupoints with traditional acupoints is presented for acupuncture practitioners to take principles combining extra acupoints with traditional acupoints into consideration. The application of the newly discovered extra acupoint Gangshui is presented for discussion.