Abstract: The western sector of east Kunlun and the Altun region are located in the binding site among the north-west,north-east and nearly east-west struct ures; and with the process of very complex geological structure,the mineralization is very favorable.Based on recently completed 1 :50000 regional geological and mineral survey results,through the analysis for regional tectonic and sedimentary construction,the division program of regional stratum and the establishment of space-time frame of stratum units have been propo sed in this paper,in order to provide new information for the study on geological background