The invention discloses a method for processing voltage and current metering abnormality based on a knowledge base, and relates to a metering abnormality processing method. At present, the on-site operation and maintenance personnel need to rely on their personal knowledge to work, so that the requirements for the personnel are high, and the efficiency is low. The method disclosed by the inventioncomprises the steps of: performing remote master station analysis and abnormality processing on voltage and current abnormal work orders according to the knowledge base; when false misinformation, abiogeny and file data errors are determined, performing no processing, and trying remote processing on the work orders of other failure; if the remote processing is successful but the failure is not restored, dispatching on-site processing, and if the failure is restored, archiving and ending; during the on-site processing, finding the cause of the abnormality, a diagnosis method and a repair method according to the knowledge base, and performing the on-site processing according to the corresponding method; and supplementing a new abnormality processing method in the knowledge base. According to the technical scheme, the knowledge base is utilized, the application level of the knowledge base is improved, the technical requirements for operation and maintenance personnel are reduced, the working efficiency is improved, and the waste of human resources is reduced.