宋律在田宅等不动产之买卖中,赋予亲族、邻人以及其典权人等特定身份的主体享有优先购买权。优先购买权制度的设立,是法律儒家化的产物,是封建时期统治者出于对于社会管理的创设的一项制度。同时,其对于构建一个稳定的社会结构,保证社会秩序也具有一定的积极意义。 In the sale and purchase of real estates and other real estates, the Song law enjoys the priority of giving priority to certain subjects such as relatives, neighbors and their attorneys. The establishment of the preemptive right system is a product of the Confucianization of law and is a system established by feudal rulers for the creation of social management. At the same time, it also has certain positive significance for building a stable social structure and ensuring social order.