To observe the clinical efficacy of professor Li Shimao′s sweating method on knee osteoarthritis cold coagulation syndrome types. Methods:To select ninety patients of such type of disease and to randomly divide them into Chinese medicine control group (n=45) and treatment group (n=45). The control group was given Wutou decoction and the treatment group was given Hanjing decoction. To observe knee joint function score and clinical efficacy after 7 days of treatment in the two groups. Results:At the end of treatment, the total effective rate in the treatment group was 93.3% and 86.7% in the control group(P<0.05). Conclusion:Diaphoresis method can effectively treatknee osteoarthritis of coagulated cold syndrome type and improve the clinical symptoms. Besides, it is safe, effective, reliable with less adverse reactions, and it is worthy of clinical promotion.