Abstract: Abstract Object :To establish methods for identification of Salvianolic acid B in Xiaoshuan Tongluo Tablet. Method : HPLC condition was as follows: WondaCract Objective： To establish an RP-HPLC method for identification of Salvianolic acid B in Xiaoshuan Tongluo Tablet. Methods： High performance liquid chromatography(HPLC)condition was as follows： A WondaCract ODS-2 (4.6 mm×250 mm，5 μm) column was used. A mobile phase that consisted of acetonitrile and 0.05% phosphoric acid was programmed for gradient elution at a flow rate of 1.0 mL?min-1. The detection wavelength was set at 286 nm and the column temperature was 30 ℃. Results： The chromatographic peaks of salicylic acid B were detected in only one sample， and were consistent with the spectrogram of salicylic acid B. Conclusion： The simple method has high specificity. It can be used to improve the quality standard of Xiaoshuan Tongluo Tablet.