一、引言优先购买权的历史源远流长,在中外法制史上都有明确的规定。亲族购买权和地邻购买权都被唐宋法律所明定,在罗马法的地上权转让的规定中也有优先购买权的规定。优先购买权,亦称先买权,是指特定的民事主体对于所有人所出卖的物或转让的权利享有在同等条件下,优先于其他人购 I. INTRODUCTION The history of preemptive rights has a long history and is well established both in Chinese and foreign legal history. Kinshasa tenants and neighbors have been the right to buy the law by the Tang and Song defined in the Roman law of the transfer of land rights provisions also have preemptive rights. The preemptive right, also known as preemption, is the prerogative given by a particular civil subject to the rights of all the people to sell or enjoy the same rights over other people