Although the ethical nature of domestic relations law and ethics of marriage and family are not homogeneous, there is a certain degree of isomorphism for them in value contents, conduct modes and so on. 虽然亲属法的伦理性与婚姻家庭伦理不具有同质性,但二者在价值目标内涵、行为规范等方面存在着某种程度的同构性。