1856年9月发生的“天京事变”,是太平天国运动中的重大事件.这一事件的核心人物是天王洪秀全和东王杨秀清.史学界普遍认为洪杨矛盾是引起“天京事变”的主要原因,至于洪杨矛盾趋于何时,怎样发展变化,至今却众说纷纭,莫衷一是.有人认为:“洪杨矛盾由来已久,最早可以追溯到1848年杨秀清假托天父下凡附体传言这件事上面”.这一观点值得商榷,本文试就这一问题进行新的探索,以就教于学者专家. The “Tianjing Incident” that took place in September 1856 was a major event in the Taiping movement and its central figure was Emperor Hong Xiuquan and East King Yang Xiuqing. Historians generally agreed that Hong Yang’s conflict was the major cause of the “Tianjing Incident.” Some people think: "Hong Yang’s contradiction has a long history and can be traced back to the earliest date of 1848, Yang Xiuqing pretended to be attached to the ancestral legend This point of view is open to question, this article tries to explore new issues on this issue in order to teach scholars experts.