Abstract: The reliability evaluation of mine ventilation networks is of great significance in ensuring the safety and stability of mine production. In order to accurately reflect the reliability of the ventilation network, a reliability evaluation system for mine ventilation network is constructed by combining the rank-order method and entropy weighting method. To establish the hierarchical structure of the index system, this paper employes the Fishbone Diagram method and defines the reliability of the mine ventilation network as the overall indicator, which is further refined into branch indicators such as ventilation mode, production layout, ventilation network structure, equipment performance, energy efficiency, and cost. In terms of the overall indicator for evaluating the reliability of the ventilation network, this paper integrates factors such as stability, completeness, rationality, and economy. These factors comprehensively consider the stability of the ventilation network during long-term operation, the completeness of information transmission, the rationality of design and practical application, as well as the realization of economic benefits. This paper establishes the rank-order method and entropy weighting method model and uses measured data from a domestic mine to verify the reliability of the evaluation model. Through these methods, this paper is able to assess and analyze the reliability of the mine ventilation network. This approach provides an effective method and tool for the reliability evaluation of mine ventilation network, which can assist decision-makers in comprehensively assessing the reliability of the mine ventilation network and formulating more scientifically and rationally decisions to ensure the safety and stability of the mine ventilation network.