Abstract: In response to the increasingly urgent need for the transformation of supervision control system in intelligent substation and the low efficiency and quality issues during the transformation of supervision control system, this paper proposes an automatic verification technology for the transformation of supervision control system in intelligent substation. Build an mirror image testing environment in the factory and export the database and image information of supervision control system before and after the transformation as files, then, offline comparison of these files to complete consistency verification of the databases and images information in the supervision control system before and after the transformation. Based on the exported file, generate sending sequences separately in supervision control system has been transformed and IED simulation system, and automatically send them in sequence, after completion, generate receiving and sending record files and compare them to complete consistency verification of points between supervision control system has been transformed and the IEDs. The technical solution has saved a lot of labor and time costs, improved the efficiency and quality of verification during the transformation of supervision control system.