The purpose of this study was to investigate the working environment and job satisfaction of dental hygienist to see how it affects job satisfaction and to explore ways to improve job satisfaction. To this end, a survey was conducted on dental hygienists working in dental hospitals, general hospitals, and university hospitals in Busan, and 136 data excluding 17 people were used for final analysis. Frequency analysis, technical statistics, t-test, one way ANOVA, pearson s correlation, and multI-return analysis were performed. The study participants scored 3.37 ±. 54 points on the work environment, the job satisfaction average was 3.29 ±. 51, and a significant amount of correlation between the working environment and job satisfaction was shown(r=.783, p<0.01). Multiple regression analyses were conducted to determine the effect of the study participants work environment on job satisfaction. In the case of job satisfaction, age and job strength were also significant in the general characteristics of job satisfaction. In order to improve job satisfaction according to the work environment of the dental hygienist as a result of this study, a task extension and a system to improve the position of the dental hygienist must be established and professional.