Abstract: Intense rainfall and flooding frequently cause a range of calamities in mines, resulting in substantial losses and impacts. By analyzing the disaster chain evolution and risk characteristics of the underground tungsten mine affected by rainstorms and floods, disaster events were identified and the disaster chain evolution model was established. Based on the complex network theory, a network model consisting of 47 nodes and 176 edge hazards was constructed, and then parameters such as node degree value, node subnet number and edge vulnerability were analyzed to identify the key points and edges of the disaster network. The results show that the flooded wells, factory destruction, industrial site inundation, industrial site burial, and industrial site damage are 0.328 3, 0.115 4, 0.109 9, 0.084 5 and 0.084 5, respectively. These disaster events are critical nodes in the network of a specific underground tungsten mine disaster induced by heavy rainfall and floods. Furthermore, the edge vulnerability for surface water to surface runoff, surface runoff to debris flow, the sudden influx of water into the mine to flooded wells, surface runoff to collapse landslide, and surface runoff to flash floods are 373.715 1, 354.782 4, 346.153 6, 336.122 2 and 335.838 5, respectively. The above edges are the critical edges in the network of rain-flood-induced disasters in the specific underground tungsten mine. The research findings offer a scientific basis for the prevention and disaster risk reduction of underground tungsten mine disasters induced by heavy rainfall and floods.