奕訢是晚清朝政中一位资深人物。在他当政期间所采取的一系列的举措,如第二次鸦片战争后,建议设立一个系统的独立的机构来管理对外事务——总理各国事务衙门,可以说是开了晚清外交近代化风气之先。以奕訢为代表的统治阶层开明之士在一定程度上加速了晚清外交从传统走向近代的进程,并通过长期客观务实的外交实践和反思,推动了晚清外交和外交体制的近代化演变。本文旨在通过从第二次鸦片战争期间奕讠斤被受命为钦差全权大臣同西方列强谈判的过程中其外交思想的渐变,探究其在《北京条约》签订前后外交思想渐变的深层原因和种种表现及对晚清外交的影响。 Yi Xin is a senior personage in the late Qing Dynasty. The series of measures taken during his administration, such as the Second Opium War, suggested the establishment of a system of independent agencies to manage foreign affairs - the affairs of the Yamen, the Prime Minister can be said that the late Qing diplomatic modernization style First. The enlightened people of the ruling class, represented by Yi Xin, accelerated to some extent the process of diplomacy from the late Qing Dynasty to the modern era and promoted the modernization of diplomatic and diplomatic systems in the late Qing through the long-term objective and pragmatic diplomatic practice and reflection. . The purpose of this paper is to find out the deep reason and variety of diplomatic thought gradual changes before and after the signing of the Beijing Treaty by sweeping the terms of the Second Opium War as the gradual change of diplomatic thinking of the Plenipotentiary minister during negotiations with the Western powers Performance and its Impact on Diplomacy in the Late Qing Dynasty.