Based on the field investigation of the leakage of pipeline transportation and combining with the latest research direction of emergency management mechanism, it was found that the stochastic Petri net model suitable for this kind of problem was modeling. Taking the Huangdao oil pipeline leakage accident as an example, the data of emergency management flow of pipeline transportation leakage were collected and processed, and isomorphism Markov chain to study the change utilization rate and average delay time was used. The results of the study indicated that the coordinated treatment of pipeline leakage systems, protection of the affected areas and the transfer of the masses took the most time in emergency operations. Therefore, intensifying the cooperation between the central construction administrative agencies and the local construction administrative agencies and perfecting the mass transfer and resettlement system were reasonable measures to strengthen emergency management of pipeline leakage and minimize economic losses.