This study was a correlational study between the violence experience and post-traumatic stress disorder, compassion fatigue, and job satisfaction of emergency room nurses. The researcher conducted this study on 114 randomized emergency room nurses from 9 emergency rooms located in Gyeonggi-do and collected data for approximately 4 weeks from July 1, 2019 to July 31, 2019. The mean values of verbal violence showed 11.50±3.37 points, physical threatening showed 11.57±4.15 points, and physical violence showed 11.07±5.20. In this study, the mean values of post-traumatic stress disorder was 34.59±14.46 points, compassion fatigue was 26.50±7.17, and job satisfaction was 61.19 ± 8.38 points. Multiple linear regression indicated that post-traumatic stress disorder (β=-.21, p=.009) respectively predicted job satisfaction(F=23.11, p<.001) Based on the study results above, it is considered that programs that can systematically manage and prevent post-traumatic stress disorder and compassion fatigue are required to reduce post-traumatic stress disorder, and compassion fatigue from violence experience of emergency room nurses. Moreover, safe work environments should be established to work efficiency.