The article presents the study of western historiography of Anglican and Orthodox dialogue in the XIX century. The relations between the Church of England and Orthodox churches in the XIX century, including the Russian Orthodox Church, is an essential aspect of the history of Anglican and Orthodox relations, no less important for Russia than for the UK. However, it still has not received enough scientific attention. The paper highlights the key aspects of the development of Anglican and Orthodox relations in the XIX century and analyzes their interpretations proposed in foreign historiography. The article demonstrates that the predominant research is of individual personalities, primarily the key figures for the Anglican and Orthodox dialogue in the XIX century – Palmer and Neale. Studying the causes of Anglican and Orthodox contacts in the XIX century, western researchers highlight both the political aspects and the internal Church situation in the Church of England, as well as theological and dogmatic considerations and personal enthusiasm of individual Anglicans concerning the Orthodox East. The researchers agree that the basis of the Anglican and Orthodox dialogue was the Branch Theory of the Anglican catholic orthodox church, developed by representatives of the Oxford movement, as well as the doctrine of the Apostolic succession of the Church of England.