Objective To develop a scientific and standardized training system for cardiovascular nurses. Methods The training objectives and system framework were determined by literature analysis and expert consultation meeting. Delphi method was used to carry out two rounds of expert consultation，and five parts including training objectives，requirements for instructors，training contents and hours，training methods and assessment were established. Results The effective response rates for both two rounds of expert consultations were 95%. The expert authority coefficient was 0.88，and the coefficients varied from 0 to 0.232. The training objective for cardiovascular specialty nurses was to cultivate the characteristic specialized nurses. The training team should include experts and instructors. The 1-month theoretical training included four parts：basic theoretical knowledge，professional skills，relevant professional abilities，and professional characteristics. Class teaching and skill training should be used to conduct the theoretical training. The 2-month clinical practice was carried out by clinical teaching and online learning. The assessment included theoretical assessment，clinical skill assessment，and training summary and case analysis assessment. Conclusion The training system of cardiovascular specialty nurses is scientific and feasible，which can provide reference for clinical cardiovascular specialty nurses training.