Abstract: Olfaction is one of the basic feelings, which plays an important role in appetite, warning of danger and emotion regulation, etc. More and more studies have shown that olfactory dysfunction may affect quality of human life. Thus, the attention of olfactory dysfunction is increasing. There are many subjective and objective methods for olfactory function detection, and olfactory event-related potential （OERP） is a more objective method. This article reviews the development, testing and analysing methods and clinical research of OERP, and explores its application prospects in forensic clinical medicine.

Key words: forensic medicine, olfaction disorders, review, evoked potential