In Pakistan’s Baluchistan province，because of mutual hostility and strife between Sunni and Shiite，the Baluch and the Hazara，The terrorist activities have become increasingly rampant. the surface reason is that levels of government of Pakistan are too weak to protect civil security，deep-seated reasons are that the Islamization of state and society has improved sectarian sense；the landlords of the Hazara belonged to Shiite have exploited Sunni farmers；the war in Afghanistan led to the influx of Hazaras into Baluchistan；the Iranian Islamic revolution has stimulated religious and political consciousness of the Hazaras；the Taliban’s rise and development has stimulated radicalization of Sunni；local competitions between Hazaras and Baluchs in order to get much more resources for survival and development. Mutual hatreds and hurts of both sides of terrorist organization are the real basis of serious internal conflict，which have removed motivation and ability of local social and economic development. Local ethnic groups have been aware of their mistakes and begin to correct its own errors，but the road to achieve national reconciliation and unity is far away.