In recent years, in the process of urban above-ground space construction, safety problems such as repeated excavation of road surfaces, frequent pipeline accidents, and dense overhead road pipelines have frequently appeared. The efficient construction, development and utilization of urban underground comprehensive pipe gallery space has become the key. In this way, the construction of the underground comprehensive pipe gallery project has become an important strategic direction for the sustainable development of the city. However, since the underground integrated pipe gallery project has been in the stage of large-scale research and promotion, many large cities often ignore their own advantages and the economic development needs of the city, and there is a common situation of blindly constructing underground integrated pipe gallery. In-depth research on risk management and safety issues has been carried out in the construction of the corridor project, which is particularly urgent in terms of relevant theoretical and technical basic research and application practice. In this paper, qualitative and quantitative risk analysis methods are used. First, the risk identification is preliminarily carried out by using the literature research method through qualitative methods, and then the risk identification is carried out using the work decomposition method. This paper mainly studies the risk of the underground comprehensive pipe gallery project, and provides a systematic and efficient analysis method for the risk analysis and management problems of the underground comprehensive pipe gallery project.