In order to assess the risk of large-span bridge hanging basket construction effectively, Tanjiang super large bridge was taken as the background. Based on the hanging basket cantilever construction technology and the construction site organization and management, the risk factors affecting the bridge construction quality and personnel safety during the hanging basket cantilever construction process were studied. First, the risk sources were identified and analyzed, the risk factors affecting the bridge construction quality and personnel safety were looked for, and the multi-level fuzzy evaluation model and evaluation system were constructed. Then, the analytic hierarchy process was used to calculate the vectors of each layer to obtain the order of the risk factors affecting the bridge construction quality and personnel safety. Finally, the fuzzy mathematics principle was used to determine the evaluation level. The results show that the risk status of the bridge construction quality and personnel safety is good, close to the actual situation relatively. This study provides a powerful scientific basis to ensure the construction quality and personnel safety for the Tanjiang super large bridge.