Abstract: The Chawalong–Gongshan section of Nujiang River basin is located in the three parallel rivers area in the southeast of Tibetan Plateau. The geo-environment in this area is fragile and geological hazards occurred frequently. In order to find out the background number of hazards and control geological safety risks, firstly, 803 slope geohazards (including rockfall, landslide and deformed mass) were recognized in the study area based on remote sensing interpretation and field investigation, and the main development characteristics of the hazards such as quantity, scale, spatial distribution and failure types were analyzed. On this basis, GIS spatial analysis, Certainty Factor model (CF) and Sensitivity Index method (E) were used jointly to study the sensitivity of the six influencing factors (elevation, slope, aspect, rock group, distance to fault and distance to water system) to hazards. The results showed that elevation below 3000 m, slope of 20°–40°, aspect in NE, E, S, SW, W, carbonate rock group, sandstone slate and schist group, phyllite group, distance less than 2 km from fault and distance less than 600 m from water system were the zones that hazards prone to occur. Furtherly, elevation ranged from 1500 to 2000 m, slope of 30°–40°, aspect in NE, phyllite group, distance less than 1 km from fault and distance less than 200 m from water system were the zones that hazards most prone to occur. The order of influence degree of each factor on the hazards was as follows: elevation, rock group, aspect, distance to water system, slope, distance to fault. The first five factors were deemed as main controlling factors for the hazards since their sensitivity index were all more than one. The research results in this paper could provide scientific basis for hazard prevention and mitigation of Nujiang River basin.