The Baitou Peak volcanic cone,Wangtian′e caldera and south Baitou Peak ca lderas, located in the territory of the Democratic People′s Repu blic of Korea, are studied by using remotesensing images,which reflect the fo rm ing process and characteristics of the Baitou Peak volcanic cone objectively and , at the same time,regularities of the volcanism in the Baitou Peak were reveale d. The south Baitou Peak volcano formed for the first time,then the Wangti an′e volcano subsequently and the Baitou Peak volcano at last. Three calderas s t and like three legs of a tripod,forming three peaks on the Changbai Mountain.