Objective To construct an evaluation index system of internationalization ability for nursing master degree candidates, and to provide a basis for improving the quality of postgraduate education and promoting the internationalization of higher nursing education. Methods A total of 20 nursing education experts were selected as the referees of the consultation. The Delphi method was used to conduct two rounds of expert consultation over the evaluation index system of internationalization ability for nursing master degree candidates. Results After two rounds of experts consultation, three first-level indicators(namely international knowledge, international skills, international thinking and awareness), 9 secondary indicators and 22 third-level indicators were identified. The expert authority coefficient was 0.872 for each of the two rounds, and the Kendall′W coefficient was between 0.314 and 0.546, and the coefficient of variation of each index ranged 0.063-0.136. Conclusion The evaluation index system is scientific and can be used as a standard for evaluating the internationalization ability of nursing master degree candidates.