任何事物的存在都有其存在的基础,古代中国优先购买权也不例外。优先购买权起于民事习惯,并随着社会的发展而不断修正与演化。它的存在有利于当时社会的发展与资源的配置、有利于家国一体。其政治、经济、伦理根基的存在,架构出优先购买权的存在符合当时古代中国现实性的国情,具有存在的必要性。 The existence of anything has its foundation, ancient China’s right of first refusal is no exception. The right of preemption starts with civil customs and is constantly revised and evolved with the development of society. Its existence is in favor of the development of society and the allocation of resources at the time, and is conducive to the integration of family and state. The existence of its political, economic and ethical foundation and the establishment of the preemptive right are in line with the actual conditions of the ancient China at that time and have the necessity of existence.