The development of event deposits in the Carboniferous Naxing Formation is of great significance for clarifying the attributes and tectonic setting of the northern Himalayan basin. Methods: Through field geological investigation, typical deep- water gravity flow and a large number of newly discovered soft- sediment deformation structures were identified in the lower part of Carboniferous Naxing Formation.Results: The deep- water gravity flow is mainly composed of slump and sandy debris flow, with limited development of turbidity. The development of load structure, flame structure, liquefied sandstone vein and liquefied breccia indicates the characteristics of earthquake triggered soft- sediment deformation structure.Conclusions: Based on the regional geological setting, the deep- water gravity flow and soft- sediment deformation structure characteristics of the Naxing Formation indicate that the northern Himalaya was in a passive continental margin rift environment during the Carboniferous.