The framework of the electrical equipment diagnosis system based on multi-agent is put forward under the environment of electric power big data in this paper. Electric power big data is used to diagnose electrical equipment in order to solve diagnosis problems in complicated process. In design of monitoring and diagnosing a single electrical equipment,ODS is used to access electric power big data to improve the efficiency of data access. In design of the multi-agent system,the management agent,analysis and diagnosis agent,information sense agent are adopted to compose the intelligent parts of ...