The nutritional components of 1 Rhizoma Cyperi are glucose 8.3%-9. 1%, fructose 1.0%- 1.7%, starch 40%-4 1. 1%, and volatile oil 0. The volatile oil contains: β-pinene, camphene, 1, 8- cineole, limonene, p-cymene, cyperone, cyperone, β-cyperone, α-cyperone, β-cyperone, green terpene ketone, α-and β.

2 Bacteriostasis The volatile oil of Cyperus rotundus has inhibitory effect on Staphylococcus aureus and is also effective on Shigella sonnei.

3 cardiotonic and heart rate slowing incense has the function of cardiotonic and heart rate slowing, and its cardiotonic effective components are related to alkaloids, flavonoids, glycosides and phenols.

4 Analgesic effect Mice were treated with electric stimulation disc method. Subcutaneous injection of 20% ethanol extract of Rhizoma Cyperi (0.5 ml /20 g body weight) can significantly increase the pain threshold of mice. It shows that Rhizoma Cyperi has analgesic effect.