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With the continuous improvement of China's infrastructure, integrated pipeline corridors have become an indispensable part of intelligent city management. Because of complex environments and numerous potential failures in integrated pipeline corridor operation and maintenance, the risks in integrated pipeline corridors present dynamic characteristics. The analysis of only their static characteristics is therefore insufficient. In this paper, based on the combination of the design structure matrix (DSM) method and the principle of pairwise comparison in the analytic hierarchy process (AHP), we determine the interaction and the strength of the relationship between the risks of integrated pipeline corridor operation and maintenance, construct a dynamic risk model based on system dynamics, and analyze the influence mechanism of the risk control input on the system risk in integrated pipeline corridor operation and maintenance management. The simulation results show that the integrated pipeline corridor operation and maintenance risks form various risk paths under the influence of unreasonable design and construction, third-party damage, natural disasters and management team level factors. The risk control input can reduce the integrated pipeline corridor operation and maintenance risk to a certain extent.