The purpose of this research is to investigate the resistance to Tang (唐) of refugees in the Liaodong(遼東) area after the Koguryo(高句麗) downfall. The conclusion are following. After fall of Koguryo, refugees resisted rule of Tang. Many castles especially become free from the Andong Dohufu(安東都護府) in the Liaodong area. And it participated in the resistance to Tang. Although entered into the lull state, it interfered with the Korean Peninsula attack of Tang. And refugees attacked Tang troops. Finally the Andong Dohufu moved to the Liaodong castle by the resistance movememt which occur in late 675. And Tang dispatched King Bojang(寶藏王) in Liaodong. After coming back, Bojang adapted itself to the policy of Tang. By the way, Yon Namsaeng(淵男生) died in January, 679. And in order to suppress revival movement of Togyul(突厥) in November, 679, Yingzhou Dodok(營州都督) went to the war. King Bojang tried revival movement with the Koguryo refugees and Malgal(靺鞨). Chengbang(城傍) which consisted of Koguryo refugees was utilized in the military wing. Silla which has grasped the situation of Liaodong connected marital relationship to the Bodeokguk(報德國). On the other hand, Silla dispatched the army to Biyeolhol(比列忽) in January, 681. Because Tang became aware of revival movement. Eventually King Bojang was exiled to Gongju(?(공)州) in the beginning of 681. The Koguryo refugees were hustled into Tang again.