Power load data refining method

The invention discloses a power load data refining method used in the field of grid control. The power load data refining method includes the following steps: acquiring power load data; carrying out identification and data supplementation on missing data points in the power load data; outputting a data supplementation result; carrying out identification and data correction on singular value data points in the power load data; and outputting a data correction result. The power load data refining method has the technical advantage that by carrying out data supplementation on the missing data points in the power load data and data correction on the singular value data points in the power load data, the power load data refining method can increase the quality of the power load data, thus laying a foundation for the subsequent mining and analysis of the power load data.