Objective: To analyze the contents of tannin and the absorption capacity of carbon between Scutellaria Radix and charred Scutellaria Radix so as to explore the mechanism of the hemostatic effect of charred Scutellaria Radix. Method: Phosphotungstomolybdate acid/casein-spectrophotometry and methylene blue-spectrophotometry were adopted to compare the contents of tannin and the absorption capacity of carbon. Result: After being charred

the content of tannin significantly decreased but the absorption capacity of carbon significantly increased. Conclusion: The influence of tannin on the mechanism of the hemostatic effect of charred Scutellaria Radix was not consistent with that of the adsorption capacity of carbon. The deeply integrated research on chemical substances will be considered to clarify the mechanism of hemostatic effect of charred Scutellaria Radix.