Aiming at the problem that the secondary circuit of intelligent substation is inefficient, prone to errors, and unable to meet the current maintenance intensity, this paper studies the intelligent verification technology of substation configuration files based on knowledge atlas. First of all, the paper expounds the technical principle of knowledge map, and describes it from two aspects: the construction framework and the construction steps; The description files of intelligent devices in SCD are segmented based on natural language processing technology and matched with the auxiliary phrase thesaurus and SCD virtual circuit template library to ensure the correctness verification of virtual circuits in the next step; A secondary virtual circuit verification model of intelligent substation based on knowledge atlas is designed to verify the correctness of the virtual circuit. For the expanded substation, a method of knowledge supplement and redundancy auxiliary verification is proposed. Finally, the feasibility of the design system is proved by an example.