Objective:To summarize the best evidence of pulmonary rehabilitation in adult patients undergoing upper abdominal surgery and provide evidence-based basis for clinical intervention.Methods:Systematically searched clinical decisions, guidelines, expert consensus, evidence summary, systematic review and randomized controlled trial studies on pulmonary rehabilitation for patients undergoing upper abdominal surgery in UpToDate, Cochrane Library, Web of Science, PubMed, Embase, CINAHL, National Institute for Health and Clinical Excellence, Scottish Intercollegiate Guidelines Network, National Comprehensive Cancer Network, Guidelines International Network, Medlive, British Thoracic Society, European Respiratory Society, American Association for Cardiovascular and Pulmonary Rehabilitation, Canadian Thoracic Society, American Thoracic Society, WanFang Database, China National Knowledge Infrastructure, VIP Database, and China Biology Medicine. The retrieval time limit was from March 11, 2012 to March 11, 2022. Evidence was extracted, summarized and recommended after strict evaluation of literature quality.Results:A total of 19 pieces of literature were eligible for inclusion. They were 2 clinical decisions, 4 expert consensuses, 4 systematic evaluations, and 9 randomized controlled studies.The best evidence included 22 recommendations in 7 dimensions, namely pulmonary rehabilitation team, patient assessment, sports training, respiratory muscle training, drug rehabilitation, health education and quality control.Conclusions:Summary of the best evidence of pulmonary rehabilitation in patients undergoing upper abdominal surgery can provide evidence-based guidance for clinical intervention, but medical staff should also develop personalized training programs according to the actual situation of patients when applying the evidence.