Due to the lack of effective management means，the integrity，consistency and validity of power grid communication resources data can not be guaranteed，which affects the quality of service of power grid communication profession. To solve this problem，a metadata-based data verification method for power network communication resources is proposed. The method is divided into three processes：using network packet capturing to get the data of power grid communication resources，storing the captured data into disk array and multi-level verification of power grid communication resources data. Information layer verification in multi-level verification uses XSD recommendation standard as metadata driver and XSD verification engine to realize information verification. Model layer verification uses ontology files described by metadata model and public information model OWL as metadata to verify RDF format model extracted from the resource information of each system in nuclear power network communication network. Examples：Data layer checking is based on the metadata of the topological rules in the metadata model to check the common topological structure problems such as islands，inner and outer rings in various systems of nuclear power network. The experimental results show that the proposed method can effectively verify the consistency，validity and integrity of power grid communication resource data，and the verification accuracy is higher than 95%.