Abstract: Peanut stems and leaves as a Chinese herbal medicine for promoting sleep,there are already in use in our country folk.So far,many scholars have paid attention on the component analysis.But functional factor and its mechanism to improve sleep quality has not yet been determined at present.More efficient,high quality drugs to promote sleep have also not been developed in largescale.This paper reviews the extraction method，research of the components of peanut leaves and stems,functional activities and it’s mechanism of action to promote sleep;As well as the limitations of the research and product development at present；And to make the prospect of the research direction in the future,the key and trends.

Key words: extracts of peanut leaves and stems, promote sleep, mechanism of action