Objective To search and summarize the best evidence of nutrition management in adult patients with moderate and severe burns. Methods Domestic and foreign databases and official websites of relevant associations were systematically searched until December 31，2022，and the quality of literature was evaluated and evidence was extracted. Results A total of 24 literature were included，including 8 guidelines，4 clinical decisions，6 systematic reviews，5 evidence summaries，and an expert consensus. A total of 31 pieces of evidence were summarized into 8 categories，including early risk identification and overall assessment of nutrition，establishment of interdisciplinary nutrition management team，nutrition intervention objects and timing，selection of nutrition intervention approaches and matters needing attention，formulation of individualized nutrition management plan，energy demand monitoring， dynamic monitoring，on-the-go evaluation，discharge guidance and health education. Conclusion Medical staff should select the best evidence according to the actual situation of patients in the process of evidence application，reduce the incidence of malnutrition in burn patients and improve the quality of nursing.