The study is intended to promote participation and popularization of family leisure by analyzing awareness and constraints of family leisure in their twenties and thirties. Eight subjects in their twenties and thirties were selected and in-depth interview was conducted from November to December in 2012. Interview was analyzed by qualitative methods and the results are as follow. Firstly, the absence of concepts of family leisure and the decrease in the range of awareness of family leisure are found in terms of awareness of family leisure. Secondly, The motivation of participation in family leisure is participation as a natural family event and obligation as a family member. The reasons of participation in family leisure are for harmonious communication, improvement of understanding among family members, psychological comfort, increase in love for family through sharing activities. Thirdly, the constraints of family leisure are conflicts, consideration of family leisure as being unimportant, lack of time, financial and physical constraints, lack of information, burden of role expectation.