經學在中國歷史的洪流中波瀾壯闊地發展，對中國文化的影響既深且鉅，傳統法律自然也受到經學深遠地影響，透過經學掌握傳統法律的深層結構是一個相當重要的研究視角。唐代律典《唐律疏議》上稽秦漢魏晉之大成，下立宋元明清之楷模，理析這部律典「如何援經入律？」應是一個值得認真鈎稽的論題。夫婦是人倫關係的肇始，夫婦有義而後父子有親，父子有親而後君臣有正，所以本文即以《唐律疏議》為研究對象，探討婚姻規範的制定與儒家經典的關係。「援經入律」的歷史圖象，可分就三個面向來討論：其一是婚姻締結時有關「同姓不婚」、「尊長主婚」、「娉（聘）財為信」等規範皆源自於儒家經典；其二是夫妻在律典中的關係被視為一個整體但又有所分判，這些看似矛盾的法律條文蘊藉著經學天人合一的和諧邏輯；其三是律典基於經學思想的核心價值，規範夫妻不得任意離棄對方。相關論點的闡釋，希望對於唐代「援經入律」的特徵，能有更充分的證成與發揮。

Classics and jurisprudence have developed continuously since the Pre-Qin period and become two main streams of Chinese political field. The vision of ＂coordination of classics and jurisprudence＂ is an important issue of the academic community. If we evaluate the ＂coordination of classics and jurisprudence＂ from the perspective of ancient code, we can trace the historical development of classics and jurisprudence and establish a complete content of Chinese academic history. ＂Tang Ley Su Yi＂ which has been characterized as ＂the merging classics in jurisprudence＂, is worthy of our thorough research. Therefore, in this paper, I’ll evaluate ＂the coordination of classics and jurisprudence＂ from the perspective of ＂Tang Ley Su Yi＂ and focus on the law of marriage in ＂Tang Ley Su Yi＂.