The invention relates to a quality management and control method for electricity transaction data warehouses and a management and control system thereof. The method comprises the following steps: defining checking metadata and checking rules; setting checking tasks; performing checking service; releasing a data checking result; and handling and tracking quality problems. According to the technical scheme of the invention, the rationality, consistency, integrality and timeliness of data are judged by aiming at a data set and through flexible definition of the checking rules, statistical and historical trend analysis is made on four management and control indicators, and a problem handling and tracking feedback mechanism is designed to facilitate quality control measure formulation by management personnel. After implementation, the system, as an important part of an electricity market data warehouse, provides a data quality guarantee for advanced analysis and mining application of the market.