Abstract: An interpretative study of the regional geology of the Dur'ngoi copper district, Qinghai Province, has been conducted using satellite remote sensing images. (1) Three sinistral strike slip faults and a set of plume structure have been interpreted, and one of the faults has been measured to have a displacement of sinistral strike slip of 1 200 m. The strike slip nature of the three faults was not found in the previous 1∶200 000 and 1∶50 000 geological mapping. (2) Pyrolite that is interpreted as a component part of ophiolite exhibits image features that are different from those of ordinary magmatic rocks.