Objective To establish the quality criterion of cockscomb charcoal decoction pieces.Methods The quality standard was estab-lished based on the properties of character,water content,ash content,extract content and the content of total flavonoids.Results The proposed standard was that the moisture content should not exceed 13.0%,the water extract content should not be less than 18.0%,the total ash content should not exceed 13.0%,and the acid insoluble ash content should not exceed 3.0%.The total flavonoid content is not less than 1.2%.ConlustionThe data obtained in this study are real and reliable,and can provide a theoretical basis for establishing the quality standard of cockscomb charcoal.