Introduction   Since currently unmanned aerial vehicles (UAV) have been widely used in power grid inspections, research and development of the UAV power grid inspection training and evaluation system is to reduce real machine drill errors, reduce the risk of crashes and equipment damage, and train grid inspection personnel with standardized operation and mature techniques.

    Method   To meet the actual requirements of the UAV grid inspection, this paper established the virtual geographic information scene and the transmission line operation scene , based on the large visual simulation technology. At the same time, the system was built-in technical guidelines and safety specifications that must be followed by the UAV power line. It could statistically analyze and quantify the training effect of the participants.

    Result   The research shows that the machine patrol personnel can participate in the training at any time and at low cost, which can partially replace the real patrol drill training, speed up the training of technical personnel, and adapt to the development needs of the power grid.

    Conclusion   The developed UAV Power Grid Inspection Training and Evaluation Simulation System will improve the operation and maintenance inspection personnel′s operational quality of the drones to new level, which has certain reference significance and is worthy of application and deployment.