The utility model discloses a filter equipment in advance of electric power system SCADA metric data, include: digital signal processor to and synchronized clock module, first network module and the second network module be connected with digital signal processor respectively, first network module and RTU communication, second network module and regulation and control center communication. The utility model discloses beneficial effect: guarantee the validity of electric power system metric data from the source, reduced the measuration work load of data of the calculation of regulation and control center working personnel, assay, correction.