The study aims to examine the effects of job education on organizational socialization of new extensionist who is working in extension organization. The subjects were 425 people and selected nationwide. The research model consisted of organizational socialization strategy as an independent variable, organizational socialization as a mediator, and organizational commitment as a dependent variable. The research hypothesis was com posed of three item s and different analysis methods were used for each research problem. The main analytical methods were descriptive statistics, multiple regression analysis, and hierarchical regression analysis. The results of the study are as follows. Firstly, the degree of organizational socialization was higher in males and females, in higher education, and in social workers than in non-males. Secondly, in the relationship between organizational socialization strategy and organizational socialization, job education significantly explained interpersonal relationship, organizational goal value, and work efficiency. Thirdly, job education has a statistically significant effectiveness on organizational commitment. Fourthly, in the relationship between job education and organizational commitment, organizational socialization variables such as interpersonal relationship, organizational goal value, and work efficiency were found to do a partial mediating roles.