The invention discloses an intelligent transformer station IED interchange method based on a resource object matching mechanism. The method includes the following steps: analyzing IED resource objects, associating the resource objects, associating IED with a transformer station model, associating ED with the IED, and launching a resource object matching mechanism. The advantages are that the influence of faults upon a system is avoided, the normal operation of the system is maintained, a self-recovery capability is exhibited, the fault-tolerant ability of an intelligent transformer station IED system is enhanced, the system reliability is improved, and the method has engineering application values.