In 1927A. D, in Tarahā n area at Lorestan, a rebellion took place against Reza Shah in which the natives surrounded the commander of the west division, brigadier general Shah-bakhti. Ali Mohammad Khan Ghazanfari (Amir Azam), son of Nazar Ali Khan, was the leader of this rebellion, which was the last major one in Lorestan against the government forces. That was because of government’ s attempt to establish tyranny, the military commanders’ brusqurie in implementing some programs such as unarming, compulsory settling, and neglecting the attitudes of tribes of Lorestan. These had caused some sort of fear and hatred of the army and the government among the tribes of the area which, in turn, leading to rebellions including ones that occurred at Tarahā n. In this study, we shall analyze the previously mentioned event. The purpose of this study is to examine the nature, the context, the causes, the consequences and the fate of the rebellion of Tarahā n. The results show that the outrageous behaviors of army commanders towards tribes and natives’ fear of the supremacy of military forces, some efforts to preserve the local authority and various family disputes among the local rulers were the main causes of the rebellion. These led the rebellion into defeat, made AmirAzam give up, and at the end, the army captured the area.