Objective To establish a quality control method of Yanhuangbaoshen capsules.Methods HPLC was used to determine the content of Rhein,Emodin and Chrysophanol in Yanhuangbaoshen capsules and before the lower limit of Rhein and the upper limit of Emodin and Chrysophanol were established.Results The linear range of Rhein,Emodin and Chrysophanol was 8.88-44.40 μg ·ml-1 (r =0.9998),2.28-11.40 μg · ml-1 (r =0.9998) and 2.08-10.40 μg ·ml-1 (r =0.9999),respectively.The average recovery was 98.04%,99.20% and 99.68%,respectively.Conclusion This method is simple and practical,the result is accurate and reliable and it can be used for quality control of Yanhuangbaoshen capsules.