Abstract: Objective To investigate the working environment and perceived career success of critical care spe- cialist nurses in Shandong province，and to analyze the influence of nursing working environment on the career success. Methods A total of 180 critical care specialist nurses were investigated with nursing work environment scale and nurse career success scale. Results The total score of nursing working environment was 113.08±17.08， and the total score of career success was 33.89±7.60. Regression analysis showed that nursing work environment could independently predict 46.7% of the perceived career success of critical care specialist nurses after controlling general factors. And occupational development and sufficient manpower entered the regression equation. Conclusion The career success and the nursing working environment of critical care specialist nurses are at the medium level， and the nursing working environment affects their career success，especially in the aspect of career development and sufficient manpower. Nursing managers can improve the career success level of critical care specialist nurses by op-timizing the nursing working environment.

Key words: Critical Illness, Specialist Nurse, Occupations, Working Environment