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Objective:To A randomized controlled trial (RCTS) of lung tonifying and kidney tonifying in the treatment of chronic obstructive pulmonary disease (copd) by meta-analysis. Methods:Computer retrieval of databases such as CNKI、VIP、WanFang、Cochrane Library、EMbase、PubMed. The retrieval time was from the database construction to March 2020, and two evaluators were selected to screen the documents according to the na sorting standards, extract the data with Excel 2010 software, and perform Meta analysis with Rev Man5.3 software. Results:21 RCTS were included. Meta-analysis results show that compared with the conventional treatment, the method of supplementing lung and tonifying kidney can obviously improve lung function(MD=1.69,95％CI[1.36,2.01],P<0.00001)、reduce TCM syndrome score(MD=39.83,95％CI[18.10,61.56],P=0.0003)、improve life quality(MD=-5.90,95％CI[-8.95,-2.85],P=0.0001)、regulates serum immunoglobulin(MD=0.37,95％CI[0.31,0.44], P<0.00001)、improve 6MWD (MD=39.83,95％CI[18.10,61.56], P=0.0003)、improve CAT(MD=-1.68,95％CI[-2.05,-1.30], P<0.00001).The differences were statistically significant. For improved T lymphocyte subsets(MD=0.96,95％CI[-0.10,2.03],P=0.08)not statistically significant. Conclusion:Lung-tonifying kidney-tonifying method had better efficacy in improving lung function, reducing TCM syndrome score, improving quality of life, improving immunoglobulin, improving 6WMD, improving CAT, but the efficacy in improving t-lymphocyte subgroup was similar to that in the control group. Due to the limited quantity and quality of samples included in this paper, more multicenter randomized controlled trials with rigorous design of large samples should be carried out for verification.