Objective:To retrieve, evaluate and synthesize the relevant evidence of nutritional management for breast cancer patients, so as to provide reference for medical staff to formulate and carry out scientific and standardized nutrition management for breast cancer patients.Methods:Domestic and foreign computer decision support systems, guideline websites, databases and professional websites were systematically searched for evidence on nutritional management of breast cancer patients, mainly including clinical practice guidelines, expert consensus, clinical decision-making, systematic review and evidence summary, etc. The search period was from the establishment of the database to May 13, 2023.Results:A total of 14 articles were included, including 3 guidelines, 5 expert consensus papers and 6 systematic evaluations. A total of 33 pieces of evidence were summarized in 6 categories, such as nutritional screening and evaluation, nutritional intervention, nutrient selection, nutritional pathway and formulation selection, follow-up testing and nutritional education.Conclusions:This study summarizes the best evidence related to nutritional management of breast cancer patients, which is scientific and practical, and can provide evidence-based evidence for medical staff to guide patients to conduct personalized nutritional management.