The four-function acupoint model for the head is a traditional Chinese medicine teaching model that integrates teaching, demonstration and acupuncture operation training. It is mainly used for learning and mastering the positioning, acupuncture Angle and depth of acupoints on the head. Models are usually made in the scale of a human head, with important meridians and acupoint locations marked on the surface, such as Baihui, Yintang, Taiyang and other commonly used acupoints.