Purpose: This study aimed to identify factors influencing professional quality of life (ProQOL) of emergency department (ED) nurses. Methods: A total of 213 ED nurses from regional emergency medical centers and institutions in Busan, Ulsan, and Gyeongnam participated in an online survey between June 12 and September 10, 2024. Validated tools were used to collect data on demographic and job-retated characteristics, nursing work environments, workplace incivility, job embeddedness, and ProQOL. Analyses included descriptive statistics, MANOVA, and multivariate multiple regression using SPSS 29.0. Results: MANOVA revealed significant multivariate effects of age, ED work experience, Satisfaction to ED, and type of ED across three ProQOL subdomains, with Pillai's Trace ranging from .07~.48 (all p<.05). Multivariate regression revealed that job embeddedness increased compassion satisfaction (B=0.39, p<.001) and reduced burnout (B=-0.23, p<.001).
Incivility from coworkers and patients/families increased burnout (B=0.09, p<.001) and secondary traumatic stress (B=0.19, p<.001). Department dissatisfaction consistently worsened all ProQOL outcomes (B=-3.83~0.36, all p<.05), while age under 30 predicted lower compassion satisfaction (B=-1.64, p=.014) and higher secondary traumatic stress (B=-2.68, p=.005). Conclusion: Incivility, job embeddedness, and department satisfaction were key predictors of the ProQOL of ED nurses. Organizational efforts that implement clear anti-incivility policies, strengthen peer support and teamwork, and enhance job embeddedness through mentorship and recognition systems are essential to improving the ProQOL of ED nurses.