The well exposed Palaeozoic volcanic rocks distribute extensively in the Beishan area of Gansu province,this provides favourable conditions for finding and studying old volcanic mechanism with remote sensing technique. By interpreting satellite images and aerial photographs of the Beishan area, this article elaborated the Meng-tieshan, Hei-yinshan old volcanic features including, the shape and land form as well as their relationship with geological structure, and mineral resources.