1. College of Earth Sciences, Jilin University, Changchun 130061, China;
2. International Center for Geoscience Research and Education in Northeast Asia, Jilin University, Changchun 130026, China;
3. Exploration and Development Research Institute, Jilin Oil Field Company, PetroChina, Songyuan 138000, Jilin, China

Integrating drilling, well-logging and seismic data, in this study, we established the stratigraphic-structural framework, restored the lithofacies distribution of main stratigraphic units, analyzed the source-reservoir-trap assemblage and predicted favorable exploration play in Yushu Fault Depression. The results showed that the Yushu Fault Depression consists of Yudong and Yuxi sub-depressions, of which both are half-grabens controlled by the echelon fault combination. The two sub-depressions are separated by the Yushu uplift in the middle and mirrored each other. The depressions are mainly composed of lacustrine-fan delta-nearshore subaqueous fan systems, with large scale volcanic explosive and effusive facies occurred in Huoshiling Formation. This forms self-sourcing and self-reservoiring, lower-sourcing and upper-reservoiring, upper-sourcing and lower-reservoiring assemblages. The volcanic domes belt of central uplift adjacent to the source rocks in the Yudong sub-depression is the favorable exploration play in the study area.