Objective To construct a diet and nutrition rehabilitation program for patients after weight loss and metabolism,and to provide references for clinical nursing work. Methods The first draft of diet and nutrition rehabilitation program after weight-loss metabolism was prepared by retrieving domestic and foreign literature. From July to September 2021,15 experts were consulted by Delphi method for 2 rounds of correspondence to seek their opinions,and the final draft was formed. Results The recovery rate of the 2 rounds of expert inquiries was 100%（15/15） and the expert authority factor was 0.854. Kendall’s Coordination Coefficient was 0.227 and 0.578（P<0.01）,and the final program consisted of 5 primary indicators,18 secondary indicators and 37 tertiary indicators. Conclusion The diet and nutrition rehabilitation program after metabolic and bariatric surgery developed in this study is scientific and reliable,which can provide references for postoperative nursing practice in the future.