中文摘要：

拉铁摩尔创建的＂双边疆＂理论,主要强调生产方式、民族和文化的不同,忽视边疆概念中＂国家＂政权的硬件条件,难以解决中国古代复杂的边疆问题。中国古代存在着＂各个政权的边疆＂和＂中国的边疆＂两种边疆的＂双边疆＂,＂中国的边疆＂又存在中国内部的边疆（内边疆）和外部边疆（外边疆）的另一种形式的＂双边疆＂。中国古代＂各个政权的边疆＂与＂中国的边疆＂存在着背离与重合现象,各个政权的＂内边疆＂不是中国的边疆,各个政权分立时期的各个政权的＂外边疆＂只代表中国边疆的一部分,不代表中国边疆的全部,只有各个政权的＂外边疆＂合起来才能共同构成中国的边疆。各个政权的边疆在中国古代没有完全实现统一的情况下,与中国的边疆存在背离现象,只有实现大统一的元朝和清朝的边疆才与中国的边疆重合在一起,完全等同于中国的边疆。

英文摘要：

The theory of ＂double borderland＂,introduced by Owen Lattimore,mainly emphasized differences in productive means,ethnic and culture,totally neglecting the ＂state＂as a rigid condition in the concept of borderland. This offers little help in explaining involved borderland problems in ancient China. In old days,there were two different types of ＂double borderlands＂in China＇s domains,＂one type＂between borderlands of different borderland sovereigns and that of China ＂the other type＂between internal borderland and external-borderland. Coincidence and deviation were found between ＂borderland of China＂and＂those of different sovereigns＂,whose borderlands did not represent the borderland of China but only part of it in times of separation of different sovereigns until the great unification in the Yuan and Qing Dynasties when different borderlands coincided with the borderland of China and were completely equivalent to it.