Objective To evaluate systematically the clinical efficacy of Chinese external treatment in promoting wound healing under the theory of simmer pus and long meat in China. Methods Through the computer retrieval of CNKI, VIP and Wanfang database, the RCT of promoting wound healing by external treatment of traditional Chinese medicine under the theory of simmer pus and long meat was collected, and the literature was screened and data extracted according to the inclusion criteria and exclusion criteria. Using Rev man 5.3 software to Meta analyze the extracted data, and compare the clinical efficiency of external treatment of traditional Chinese medicine and Western medicine, which generally promotes wound healing, as well as the changes of various biochemical indicators. Results The results of Meta-analysis showed that under the theory of simmer pus and long meat, the effect of external treatment of traditional Chinese medicine on promoting wound healing was better than that of general western medicine, such as Vaseline oil yarn, Kangfuxin Liquid, 0.1% rivanol yarn, etc.; however, the regret of this paper is that most of the studies included did not report the recurrence rate, quality of life and adverse reactions, so it is impossible to further analyze these indicators. Conclusion This study shows that, compared with the western medicine external treatment which generally promotes wound healing, the traditional Chinese medicine external treatment under the theory of simmer pus and long meat has better curative effect in promoting wound healing; however, due to the small number and low quality of the included literature, it is necessary to design a rigorous and reasonable large sample randomized controlled trial for further study in the future.