Abstract: Objective: To investigate the job satisfaction status of emergency nurses in tertiary public hospitals in Beijing, and analyzed key influencing factors of job satisfaction. Methods: The Minnesota Satisfaction Questionnaire (MSQ) (Simple Version)was used in this survey. A total of 319 emergency nurses from five tertiary public hospitals in Beijing were included in this study.The authors also analyzed the social?demographical information and tried to figure out their impacts on job satisfaction. Results:Overall satisfaction score (3.48±0.64) of emergency nurses in five hospitals was in the median to upper level. The score (4.16±0.68)of colleague relationship and cooperation between the departments dimension was the highest. While the score of (2.41±0.31)working pressure dimension was the lowest. The emergency nurses’ job satisfaction score in B hospital (3.71±0.55) was the highest,which was rather satisfied. While job satisfaction score in C hospital (3.26±0.68) was the lowest, this lied in the general level.Variance analysis and multiple linear regression analysis showed that the education level, employment category and professional title were the influencing factors of emergency nurses’ job satisfaction in Beijing.Conclusion: Managers need carry out several measures, such as increasing social benefits, accelerating the construction of emergency specialist nurse training system, and improving the promotion system, to stimulate the working enthusiasm of emergency department nurses, and then the quality of emergency nursing could be continuously improved.