中晚唐时期最重要的政治特征之一就是以河朔藩镇为代表的藩镇割据,这也是唐代宗以来唐王朝的主要政治课题之一,朝廷曾多次尝试解决但仍然以失败告终。作为安史之乱的后遗症,藩镇割据自治的局面在经历了田承嗣之乱后逐渐稳定下来。地缘政治结构在根本上决定了藩镇与朝廷以及藩镇内部之间的关系,它是唐后期藩镇割据得以长期延续的基础。 One of the most important political features in the middle and late Tang period was the separation of the provinces and tribes represented by the river Shuo-fan dynasty. This was also one of the major political issues in the Tang dynasty since the Tang dynasty. The court tried many times to solve it but still failed. As a sequel to Anshun’s chaos, the situation of the separatism and autonomy of the military governors gradually stabilized after the Tian Chengsi rebellion. The geopolitical structure fundamentally determines the relationship between the patriarchate and the court as well as the interior of the palaces and it is the basis for the long-term continuation of the separation of the patriarchal clan from the late Tang Dynasty.