The invention discloses a relay protection VR (virtual reality) training system, and relates to the technical field of relay protection. The system comprises an image acquisition module which is used for acquiring the three-dimensional real scene images of a transformer substation relay protection room; a 3D modeling module which is used for performing 3D modeling through 3D modeling software; a simulation module which is used for real reproduction of the daily working scene of the relay protection room; and a human-computer virtual interactive module which is used for performing human-computer virtual interaction with the simulation scene of the relay protection room by using a virtual reality tool and terminal equipment. The VR technology is adopted, the daily operation condition of the relay protection room is really simulated, and equipment inspection, checking, fault processing and other virtual operation can be completed in the system so that the working efficiency of relay protection training can be enhanced on the basis of saving enterprise time, labor and material resources.