Abstract:Mantougou copper deposit is a sand rock type copper deposit found in Chifeng area of Inner Mongolia in recent years. It was first found in Inner Mongolia and the northern China. In this paper, regional geological background, geology and mineralization characteristics of this deposit has been studied primarily, and types, oreforming material source and origin of this deposit have been discussed. It can be used to guide exploration and understanding of Mantougou deposit , and has the significance in searching some similar ore deposits in late Triassic strata in Inner Mongolia and northern China.