Abstract: Based on the analysis of five sedimentary-tectonic zones and fault systems, this paper discusses controls and framework of the Early Permian basement fault on depression of multi-stage cap rocks in Luliang uplift of Junggar basin. It is determined preliminarily that the fault system of Luliang uplift is composed of Sangequan-Lunan and Dishuiquan-Shixi dextral oblique strike-slip fault belts. The caprock fault is controlled by the basement fault in Luliang uplift, forming the arcuate tree type fault system dominated by Sangequan and Dishuiquan oblique strike-slip systems near EW direction. Luliang uplift can be classified into 2 first-class structural units, 6 second-class structural units, 15 third-class structural units and 26 fourth-class structural units. Sangequan and Dishuiquan deep lithospheric strike-slip fault systems could be as pathways for hydrocarbon accumulation. Some small folds in dextral distribution along the upper wall of NE faults might become spaces for petroleum accumulation. The regulation of hydrocarbon migration and accumulation in Luliang uplift assumes tree type thermal supplies from deep crust, oil-gas migration from south to north and segmented accumulation along the uplift.

Key words: Luliang uplift, structural framework, fault system, hydrocarbon accumulation