Objective To construct a postoperative lung infection preventive care program for lung cancer patients and carry out preliminary validation,so as to provide a reference basis that can be used in clinical practice.Methods Literature analysis was carried out to search domestic and international databases,guideline networks,and association websites,with a search timeframe of January 2011 to December 2021,to obtain relevant evidence,to construct a preliminary draft of a preventive care program for postoperative lung infections in patients with lung cancer,and to use the Delphi method of correspondence with experts from Guangdong Province,Henan Province,and Sichuan Province,September-December 2022,to determine the content of the program.Correspondence to determine the content of the program.In November-December 2023,15 thoracic surgery nurses and 15 lung cancer patients in a tertiary hospital in Shantou City were selected for the initial application of the program and evaluated the effectiveness of the program through the nurses'clinical significance,applicability,feasibility,and patient satisfaction.Results A total of 21 experts completed 2 rounds of correspondence.95.65％and 95.45％of questionnaires were retumed in the 2 rounds of correspondence;the authority coefficients of the experts were 0.941 and 0.948;the Kendall's harmony coefficients were 0.176 and 0.310;the coefficients of variation for each item in the 2nd round of correspondence were 0.04～0.25.The final draft of the program included 10 aspects and 37 measures,such as teamwork,health education,risk assessment,rehabilitation training,fluid management,oral manage-ment,airway management,nutritional management,pain management,line management,and other 10 areas with 37 measures.After the initial application of the program,100％of the nurses thought that the program was meaningful,87％of the nurses thought that the program was clinically applicable and feasible,and 100％of the patients indicated that they were satisfied with the program,of which 80％were very satisfied.Conclusion The constructed nursing program for preventing postoperative lung infection in lung cancer patients is scientific,relevant and feasible,and can provide references for clinical health care personnel to develop measures for preventing postoperative lung infection in lung cancer patients.