Abstract：Objective：To observe the clinical effect of the therapy of the moisten compress with Tongluo Zhitong tincture and infrared radiation on patients with postoperative complications after knee arthroscopy. Methods： A total of 90 patients diagnosed with osteoarthritis at early and middle stages and met with surgical indications who agreed to undergo knee arthroscopy were selected. According to the random number table method，patients were divided into the infrared radiation group， the moisten compress group and the combination group respectively， with 30 cases in each group. The infrared radiation group was treated with infrared radiation after surgery； the moisten compress group was treated with moisten compress with Tongluo Zhitong tincture after surgery，and the combination group was treated with both moisten compress with Tongluo Zhitong tincture and infrared radiation. The treatment of the three groups lasted for two weeks. The score of Visual Analogue Scale(VAS) and Knee Function Score(KSS) were performed on the day after surgery，one week after surgery and two weeks after surgery，respectively. The degree of knee joint swelling and the depth of joint effusion were detected and the clinical effects were evaluated. Results：The total effective rate was 100% in the combination group，respectively higher than that of 83.33% in the infrared radiation group and 93.33% in the moisten compress group， differences being significance(P＜0.05). On the day after surgery，the VAS score in the combination group was lower than that in the infrared radiation group(P＜0.05). One week after surgery，the VAS score in the moisten compress group was lower than that in the infrared radiation group(P＜0.05)，and the VAS score in the combination group was respectively lower than that in the infrared radiation group and the moisten compress group(P＜0.05). Two weeks after surgery，the respective VAS score in the moisten compress and the combination group was lower than that in the infrared radiation group(P＜0.05). On the day after surgery， the respective KSS function score in the moisten compress group and the combination group was higher than that in the infrared radiation group(P＜0.05). One week after surgery，the KSS function score in the moisten compress group was higher than that in the infrared radiation group(P＜0.05)， and the KSS function score in the combination group was respectively higher than that in the infrared radiation group and the moisten compress group(P＜0.05). Two weeks after surgery，the KSS function score in the moisten compress group was higher than that in the infrared radiation group(P＜0.05)， and the KSS function score in the combination group was respectively higher than that in the infrared radiation group and the moisten compress group(P＜0.05). On the day after surgery，there was no significant difference in the degree of knee joint swelling between the three groups(P＞0.05). One week after surgery， the respective degree of knee joint swelling in the moisten compress group and the combination group was lower than that in the infrared radiation group(P＜0.05). Two weeks after surgery，the degree of knee joint swelling in the moisten compress group was lower than that in the infrared radiation group (P＜0.05)， and the degree of knee joint swelling in the combination group was respectively lower than that in the infrared radiation group and the moisten compress group(P＜0.05). On the day after surgery，there was no significant difference in the depth of knee joint effusion between the three groups(P＞0.05). One week after surgery，the depth of knee joint effusion in the combination group was lower than that in the infrared radiation group(P＜0.05). Two weeks after surgery，the depth of knee joint effusion in the combination group was respectively lower than that in the infrared radiation group and the moisten compress group(P＜0.05). Conclusion： The therapy of the moisten compress with Tongluo Zhitong tincture and infrared radiation can effectively relieve the postoperative complications after knee arthroscopy，obviously reduce swelling，pain and other symptoms，reduce joint effusion and improve the clinical effect.