To develop method for detetmining uercetin,Kaempferide and Isorha-mnetin in Hugan granules by HPLC.Methods:HPLC was used for the determination of uercetin,Kaempferide and Isorha-mnetin.The column was set as Hedera ODS-2 (4.6 mm×200 mm,5 μm).The mobile phase was methanol-0.4% phosphoric acid,and the gradient elution was used.The detection wavelength was set at 360 nm and the flow rate was 1.0 mL·min.Results:uercetin,Kaempferide and Isorha-mnetin showed a good linear relationship in the range of 0.0768~1.92 μg(r=0.9999),0.02004~0.501 μg(r=0.9998) and 0.021~0.525 μg (r=0.9999).The average recovery of uercetin was 98.1% with RSD of 1.4%,the average recovery of Kaempferide was 98.1 % with RSD of 1.8%,and the average recovery of Isorha-mnetin was 97.9 % with RSD of 1.3%.Conclusion:The method is accurate and stable,which can be used for the determination of uercetin,Kaempferide and Isorha-mnetin in Hugan granules.