Oil-gas pipeline water damage hazard pre-warning method and device

Embodiments of the invention disclose an oil-gas pipeline water damage hazard pre-warning method and device, and belong to the technical field of computers. The method comprises the following steps of: when the fact that a weather forecast mechanism publishes a newest forecasted rainfall capacity is detected, determining a probability that a practical rainfall capacity belongs to each first rainfall capacity group according to the newest forecasted rainfall capacity; determining a probability that a practical rainfall capacity of each pipeline river-crossing point is greater than a critical rainfall capacity; determining a comprehensive risk value of an oil-gas pipeline of each pipeline river-crossing point; and marking the pipeline river-crossing points, the comprehensive risk values of which achieve a first preset threshold value, as red alerts, marking the pipeline river-crossing points, the comprehensive risk values of which achieve a second preset threshold value and do not achieve the first preset thres