The invention provides a high-order tower modeling-based power transmission line patrol repair decision-making platform, which is characterized in that each power salesman team member of the platformaccesses a high-order tower model interface through respective terminal, and the platform uniformly processes services; the high-order tower model is in a longitudinal progressive mode of a data layer, an inline layer, a control layer and an interface layer, and all the layers are interacted through a data management module, a data abstraction module, a service processing module and a port processing module. According to the platform, fault real-time information and various professional asynchronous query requests are acquired and processed in a unified mode through the interface layer, information integration, calculation, collection and the like are completed in the platform, and feedback, pushing and publishing services are provided for users at all levels. Information synchronization of the real-time area and the non-real-time area is solved by the interior of the model, so that power transmission personnel do not need to go back and forth to a transformer substation to collect information, the information can be synchronously sent to scheduling in an outdoor line patrol repair result, the limitation of time interval information synchronization delay is avoided, and the rapid decision and centralized management and control capability of a regulation and control center on a fault disposal condition is enhanced.