Abstract:To establish the quality standard of Zhong-feng-ning mixture.Methods:TLC was used for the qualitative identification of paeoniae radix rubar, acori tatarinowii rhizome and polygoni multiflori radix. The samples were separated on the Agilent ZORBAX SB C18 column. The mobile phase was set as methanol-0.05% monopotassium phosphate(28:72)and the detection wave length was set at 230 nm.Results:The TLC spots of paeoniae radix rubar, acori tatarinowii rhizoma, polygoni multiflori radix were clear and well-separated without interference of negative samples. The linear relationship of peaoniflorin was good in the range of 0.1852-0.9260 μg (r=0.999 9). The average recovery rate was 98.55%. (RSD=1.16).Conclusion:The method is simple, accurate and fast with great repeatability, high specificity and good repeatability, which can be used for the quality control of Zhong-feng-ning mixture.