In recent years

due to the continuous rise of antibiotic resistance and the increasing demand for personalized medicine

the limitations of Western medicine become increasingly prominent.Chinese medicinal materials attract much attention because of their multi-target advantages.Electronic nose technology

based on sensor arrays and intelligent algorithms

simulates human olfactionand can rapidly detect and extract features of volatile organic compounds(VOCs)in Chinese medicinal materials.This paper reviews the basic structure of the electronic nose system and focuses on its research progress in origin traceability and quality evaluation of Chinese medicinal materials.With the progress of gas sensing technology and intelligent algorithms

the electronic nose system is expected to be widely applied in the field of origin traceability and quality evaluation of Chinese medicinal materials.