To draft the quality specification of Xiaobaihao slices. Methods: Chlorogenic acid, the main hemostatic component in Xiaobaihao and Chaoxiaobaihao was identified by TLC identification method. According to the inspection correlation stipulation provisioned in the Chinese Pharmacopoeia (2010 edition), the Xiaobaihao and Chaoxiaobaihao were inspected item by item and quantitative analysis method was established with the highly effective liquid phase for chlorogenic acid. Results: In the quality specification, the chlorogenic acid spot in TLC was clear and easily distinguished and all test items conformed to the Chinese Pharmacopoeia (2010 edition). Chromatographic column in content determination was set as Grace Smart RP18 (250 mm×4.6 mm 5 μm); Wave length was 327 nm; Flowing was at the second grade; nitrile was 0.4% phosphoric acid solution (12:88); flow speed was 1.0mL/min; and the column warm was set at 25 ℃.The theoretical plate number was less than 1000 according to the chlorogenic acid computation. Compared with the neighboring peak degree of dissociation (R>1.5), there was no obvious disturbance. The linear scope was 2～12 μg(R2=0.9998), and the average returns-ratio was 105.775% (RSD=2.8%). Conclusion: The indictment method is reliable, stable and accurate with high sensitivity, specificity and replicability.