In order to understand the strategies and meanings of the lesbiancouples’ kin work, the researcher adopted this qualitative research method with in-depth interviews on the five lesbian couples cohabiting over two years and did the thematic analysis with the information obtained.The conclusion of this study are as follows: lesbian couples entered eachother’s family of origin by starting with “we are just goodfriends”, “providing practical assistance to the other family”, “moving into the partner’s home”, in order to reduce obstructions from both families of origin. They then engaged in three major activities, which appeared to usual family activities,“family daily life chores”, house repairing”, and “discussion of the important family events and matters”, thus, further created emotional interactions in daily life and constructed a family-like relation with people who had no biological or legal bounds. Operating kin work, the lesbian couples earned the acceptance of each other’s family of origin and further enhanced intimaterelationships between themselves. Therefore, engaging in kin work became a powerful way for the lesbians to come out to others and made them feel that their own families existed in an abstract yet concrete way.The study found out that kin work is useful resources to maintain intimate relationships among lesbian families and families of origin in the existing patriarchal structure and heterosexual society. By devoting tokin work, the lesbians can reflect on their identities andintimate relationships and make good contribution to their family relationships.