The invention discloses an intelligent power grid information system. The system comprises an intelligent power grid parameter database, a parameter weight configuration file, an input module, a positive module and a dimension standardization module; the intelligent power grid parameter database is used for storing records of multiple intelligent power grids, and each record comprises multiple standard parameter values of parameters related to an intelligent power grid; the parameter weight configuration file is used for storing parameter weights stored in the intelligent power grid parameterdatabase; the input module is used for obtaining original parameter values; the positive module is used for correcting parameter values negatively related to the intelligent level of the intelligent power grid to positively related parameter values; and the dimension standardization module is used for performing dimensionless processing on the original parameter values and the positively related parameter values to obtain the standard parameter values and storing the standard parameter values in the intelligent power grid parameter database, wherein the standard parameter values and the parameter weights are used for calculating the intelligent level of the intelligent power grid.