This study analysed the lyrics of Korean popular songs to explore the ways in which romantic love is described as the foundation of marriage in recent Korean culture. Popular songs written during the period from 1920 to the present are reviewed and total number of the songs reviewed for this study is 1220 pieces. This study also reviewed the existing studies on sociocultural changes influencing Korean families and romantic love in modern days. The results show that romantic love was expressed positively and accepted by the public in Korean society after 1960`s. Love has become a crucial condition of marriage and marriage has been understood as a natural result of romantic love since 1960`s. That means romantic love became the pivot of Korean modern family life as it was adopted as an important element in marriage system. It is argued that the romantic love and marriage pattern which belong to a field of private life are found to be indivisible from macro-sociocultural conditions of Korean society.