To establish the quality standard for Baixuan Xitare Tablets (Alone, Herba Euphorbiae Hu-mifusae, Fructus Chebulae, etc,) METHODS: Herba Euphorbiae Hurnifusae and Scammonia resin were identi-fied by TLC. The content of aloin was determined by HPLC. RESULTS: Herba Euphorbiae Humifusae and Scammonia resin could be identified by TLC. Aloin showed a good linear relation in a range of 0.9360fig~ 2.184jug, r=0.9995(n=5). The average recovery was 98.54 % and RSD was 0.67% (n =9), respectively. CONCLUSION: The method is simple, accurate and specific and can be used for the quality control of Baixuan Xitare Tablets.