Objective:To retrieve and obtain relevant evidence of intra-abdominal pressure-oriented enteral nutrition assessment and management in patients with intra-abdominal hypertension, in order to provide evidence-based evidence for clinical medical staff to make enteral nutrition-related clinical decisions for patients with intra-abdominal hypertension.Methods:Systematic retrieval of Chinese National Knowledge Infrastructure, Wanfang, Chinese Biomedical Literature, UpToDate, PubMed, Cochrane Library, BMJ Best Practice and other English data, as well as domestic and foreign guidelines such as American Society for Parenteral and Enteral Nutrition, Scottish Intercollegiate Guidelines Network, etc. All evidence available on the Internet in both Chinese and English on intra-abdominal pressure-guided enteral nutrition strategies in adults with intra-abdominal hypertension, study types including clinical decision-making, systematic reviews/meta-analyses, evidence summaries, expert consensus, guidelines or related to the subject of this study closely related high-quality original research. The retrieval time was from the establishment of the database to November 2021. The literature evaluation tool was selected according to the research type. Two researchers trained in the evidence-based system independently evaluate the quality of the included literature, fully considering the clinical situation and expert opinions, and completed the evidence. Extracted and summarized.Results:Totally 13 articles were finally included, including 5 guidelines, 3 expert consensuses, 1 evidence summary and 4 original studies, and 29 evidence-based practice evidence of enteral nutrition in patients with intra-abdominal hypertension were collected, including the monitoring timing of enteral pressure, the pressure of enteral high pressure and the way of enteral nutrition, the pressure measurement of the abdominal cavity, the setting of abdominal pressure, the temperature conditions for early start of enteral nutrition, the selection of enteral pressure, the temperature setting of enteral nutrition nine aspects such as speed and regulation of internal nutrition and abdominal compartment syndrome prevention.Conclusions:This study summarizes the best evidence of intra-abdominal pressure management and enteral nutrition therapy in patients with intra-abdominal hypertension, and provides evidence-based basis for risk management, standardizing clinical practice, and ensuring treatment safety. In the stage of evidence transformation, clinical medical staff need to comprehensively weigh the benefits and risks of early enteral nutrition, and integrate evidence in combination with clinical practical application scenarios, so as to form a standardized early enteral nutrition management plan suitable for patients with intra-abdominal hypertension.