This paper intends to present issues in the study of family welfare. For this purpose, I focus on and reconsider the studies of family welfare by Sigeo Okamura. His studies are theoretical and systematic. They are based on his own "Theory by Okamura" , which develops its own identity of social welfare. He defines a family as "modern family", and emphasizes the integration of the well-being of family members and their functional roles. But, due to the changes in families since about 1975, promoting family functions has not always led family members to their well-being. His basic concepts of family welfare do not fit the reality of family life. Therefore, it is necessary to build new concepts of family welfare. For this purpose, I propose to discuss basically the place and role of family in social welfare, by constructive criticism of his studies. Then, I clarify the importance of studies on family caregiving and the value of family.