**Abstract**

While conventional treatments for many mental problems remain problematic and unsatisfactory in therapeutic outcomes, there is great demand for an effective yet economical treatment method that can alleviate the suffering of psychiatric patients. In traditional Chinese medicine, acupuncture on the scalp has been used for centuries. Not until recent decades did acupuncturists and clinicians develop new understandings and theories on the effect of scalp acupuncture. Upon elaboration on the therapeutic value of scalp acupuncture, it shows great potential in treating mental health disorders including depression, anxiety disorders, schizophrenia, and insomnia. Its profound treatment outcome in clinical use has caught clinicians' attention in recent years. However, controlled studies and investigations on its effect on psychiatric problems remain relatively small in number, and determinative evidence has yet to be found. In order to provide conclusive evidence on the use of scalp acupuncture to these disorders, more data from high-quality controlled trials are urgently needed. Since scalp acupuncture has advantages over the use of traditional acupuncture or body acupuncture in clinical and investigation settings, we are expecting a shift of attention from individualized acupuncture to a standardized universal scalp acupuncture treatment in clinical practice and academia.

**Keywords:** scalp acupuncture, treatment, mental disorder
