As the latest regulation of marriage and family affairs, the judicial interpretation of the Marriage and Family Part of the Civil Code aims to strengthen the understanding and application of the specific systems of the Marriage and Family Part of the Civil Code, balance the basic interests of different subjects, sort out various emerging phenomena in dynamic marriage and family relations, and solve the dilemma of fairness in the measurement of heterogeneous interests. Therefore, the internal mechanism and value direction of marriage norms are particularly important. The core values of socialism embody the excellent qualities of China's traditional culture, and its main connotation is the guiding ideology of marriage and family legislation, and it is also the soul of trial rules. Whether the core socialist values and marriage and family legislation are the same is the basic theory and precondition of the above issues. In the paradigm of identity theory, the improvement of marriage and family legislative rules aimed at socialist core values is an important topic in legislation and justice.