Gas hydrates represent a promising clean energy source and hold significant implications for global climate change, garnering considerable international attention. Shenhu area, a prominent gas hydrate research hotspot, has yielded a wealth of findings to date. However, a comprehensive under standing of gas migration pathways and their impacts on gas hydrate distribution in this region remains incomplete. To elucidate the mechanisms governing gas hydrate accumulation in the Shenhu area, this study integrates high- resolution 3D seismic data, well logging data, and hydrate gas geochemical data. This multi- faceted approach allows for fine- scale characterization of gas chimneys, analysis of gas hydrate occurrence characteristics in representative drilling wells, and clarification of the influences of gas chimneys on gas hydrate distribution. Gas chimneys exhibit distinct vertical zonation, characterized by a chaotic reflection zone at the bottom, an acoustic blanking zone in the middle, and a high- amplitude reflection zone at the top. Analysis reveals that most gas chimneys originate in the Paleogene, with some originating in the Neogene and the vast majority terminating in the Quaternary. Integration of well logging data reveals that gas chimney development has a significant control on gas hydrate distribution. Gas hydrates are mostly found in areas where gas chimneys originate from the Paleogene Wenchang- Enping formations and terminate in the Quaternary. Geochemical analysis of hydrate gas confirms the contribution of thermogenic gas to gas hydrate accumulation in the study area, highlighting the importance of faults and gas chimneys as conduits in the vertical gas migration pathway system. Based on these findings, a model for gas hydrate accumulation in the Shenhu area is proposed. This model provides a solid geological foundation for informing the future commercial exploitation of gas hydrates in this region.