Tectonic and bedding-parallel fractures co-develop in continental shale reservoirs, serving as critical hydrocarbon storage space and efficient flow pathways. While existing studies have defined the basic features of these fractures, their formation mechanisms, controlling factors, and differential contributions to hydrocarbon storage remain under-investigated. Taking the Fu-2 Member shale reservoirs in the Gaoyou Sag, Subei Basin as a case, this study applies multi-scale fracture data from imaging logs, cores and thin sections to quantitatively characterize fracture geometry and clarify the spatial distribution of both fracture types. Integrating fracture crosscutting relationships, fluid inclusion thermometry and carbon-oxygen isotope data, it reconstructs the formation and evolution sequence of the two fracture types, deciphers their dynamic coupling with structural-diagenetic events, and further clarifies their differential controlling factors and synergistic reservoir-controlling mechanisms.Results show four fracture types in the E₁f² Member, dominated by tectonic fractures (61%) and bedding-parallel fractures (29%). Tectonic fractures, controlled by brittle mineral content and mechanical layer thickness, feature high dips and multi-layer penetration, acting as dominant vertical hydrocarbon migration pathways. By contrast, bedding-parallel fractures—closely linked to organic matter thermal evolution and abnormal fluid pressure—typically present low-angle, dense distribution and extensive horizontal continuity. Tectonic fractures, affected by geological activity, develop throughout basin evolution, whereas bedding-parallel fractures mainly form during rapid burial, coupling with diagenetic evolution and organic hydrocarbon generation.The synergistic development of the two fracture types significantly improves reservoir permeability: tectonic fractures boost vertical connectivity with centimeter-scale apertures, while bedding-parallel fractures enhance local storage capacity by increasing effective porosity via dissolution. Their intersecting zones form heterogeneous "sweet spots" (e.g., Sub-members IV-3 to IV-7) with substantially higher cumulative oil production. This study provides theoretical and practical guidance for predicting such sweet spots, thus facilitating efficient development of continental shale hydrocarbon resources.