Objective To construct the core competence evaluation index system for intravenous therapy specialized nurses.Methods Using literature research,group discussion,and two-round Delphi expert consultation,the core competence evaluation index system for intravenous therapy specialized nurses was constructed.Results The response rates for two rounds of expert consultation were both 100%,authority coefficients were 0.93 and 0.94,and coordination coefficients at all levels ranged from 0.252 to 0.418.The core competence evaluation index system for intravenous therapy specialized nurses consisted of 8 first-class indexes,35 second-class indexes and 93 third-class indexes.Conclusion The enthusiasm,authority,concentration degree and coordination degree of experts were comparatively high.It can provide references for training,assessment,certification,utilization and management of intravenous therapy specialized nurses.