BackgroundIntensive care unit (ICU) nurses require advanced expertise and skills in critical care and need infection control nursing competency (ICNC). Given the lack of research on it, this study aimed to develop a model of ICU nurses’ ICNC. MethodsA Delphi panel consisting of experts in intensive care nursing and infection control was organized to provide discerning and professional perspective on ICNC. Approved by the Institutional Review Board, a three-round Delphi survey was conducted via email from July to December 2023. The content validity ratio (CVR) and the coefficient of variation were calculated for panel responses. ResultsAmong 17, 15 nurses (88.2%) participated and completed the surveys. 80% were female, and the panel had an average working experience of 14.2 years specifically in ICUs and/or infection control departments at hospitals. After the initial round, a preliminary model was developed, consisting of 10 main components and 59 sub-elements. After eliminating five elements with CVR values below 0.49 in the second survey, the final model, consisting of 10 main components and 54 sub-elements, was confirmed in the third survey. ConclusionsICU nurses’ ICNC can be understood based on this study’s results, and further research can be designed to improve this competency.