It has a remarkable effect to use technologies of synthetical remote sensing and multi-source imformation compounding such as the land- satellites TMand MSSimages, the airborne colour infrared photography and the infra led scanning digital image, during the 1:50000 remote sensing geological survey and the prognosis of gold and uranium mineralization in the area of the north in Anxi, Gansu (westen area in south band of Bei Shan). It has procured a great development in the fields of the synthetical application of remote sensing technology, the basic geology, the prognosis of gold (uranium) minerals and the 1:50000 remote Sensing geologic mapping study. During the three years, we have completed 1: 50000 geologic map and 1:50000 mineral resource map 21 pictures for each. Nearly one thousand of altered rock and 67 gold-ore targets were found out, favourable areas of uranium mineralization are identified further. It supplies amount of important bases for searching new mines.