Today, many organizations, including venture companies, are focusing on attention on securing and attracting talented people, and on the job satisfaction of their members. However, many organizations, including venture companies, lack understanding of work-family interaction. This study was conducted to investigate the interactions between work and family. Specifically, this study aims to verify the mediating effects of paternal involvement in child care, specifically effects on influences of autonomy at work over satisfaction at work for Dual-income married man living in Gyungbuk province, whose spouse is also working. In order to achieve the aim, I conducted survey from August 29 to September 22 in 2014, targeting married man living in Gyungbuk province, and collected data were analysed using SPSS 20.0. Characteristics of each factors were analysed through frequency and descriptive statistic analysis, and correlation, causal relation, and mediating effects of factors were analysed through correlation analysis and hierarchial analysis. The summary of this study is as follows. First, satisfaction at work for married man showed positive relations with all the sub factors of autonomy at work and paternal involvement, which are housekeeping activities, cognitive fulfillment counselling, life style counselling, and leisure activity participation. Second, satisfaction at work for married man appears to be affected by autonomy at work, life style counselling, leisure activity participation, monthly income, and occupation. Also, in relationship between autonomy at work and satisfaction at work, life style counselling and leisure activity participation, that are sub factors of paternal involvement, appeared to be partially mediating. Therefore, in order to improve the job satisfaction of men, it is necessary not only to increase job autonomy, but also to improve the job satisfaction by preparing ways to parenting involvement.