晚唐时期的西北长期御边型藩镇,作为长安城的保障,至黄巢之变被打破。在黄齐政权立都长安期间,西北藩镇中的凤翔、邪宁两镇一度成为黄齐政权的间接政区,但不久即回到唐廷一方,并成为唐廷镇压黄齐政权的第四、第五、第六阶段行营的主力之一。经过黄巢之变,西北藩镇的武人化更为彻底,倚靠宦官的“宦官系武人”所控制的藩镇和由部族势力掌控的其余西北藩镇,都有各自单独的发展道路。原本可视为一体的西北长期御边型藩镇,已经失去了原有的防御功能,成为大大小小的割据藩镇。 In the late Tang Dynasty, the northwestern long-wing imperial court town, as a guarantee of Chang’an City, was broken by the change of Huang Chao. During Huangqi’s regime of Lidu Capital, the two towns of Fengxiang and Yuxing in northwestern fan towns became an indirect political power of the Huangqi regime. However, they soon returned to the court of Tang and became the fourth to suppress Tang’s suppression of the Huangqi regime. Fifth, the sixth phase of the operation of one of the main camp. After the change of Huang Chao, the warlords in the northwest feudal clan became more thoroughly armed. The reigns of the eunuchs who controlled the “eunuchs” and the other northwestern feudal powers controlled by the tribal forces had their own paths of development. Originally regarded as one of the Northwestern long-term patriarchal clans, it has lost its original defense function and has become a large and small separatist military governorate.