The invention discloses a method and a system for identifying energy value reverse metering anomaly, belonging to the technical field of energy metering management. The method of the invention comprises the following steps: (1) the master station of the energy metering management system independently collects data blocks of the metering equipment at least three times within a predetermined numberof days, and the independent collection time interval is not less than 24 hours to obtain the data block parameters of the metering equipment; ((2), comparing a parameter with a standard value of thatparameter, and judging whether the data block of the metering device is in an abnormal state of reverse metering with the energy value; 3, judging whether any three measure equipment data blocks arein that abnormal state of reverse metering with energy value. The invention is used for electric, water and gas heat energy metering management system, and carries out data analysis at the system mainstation to judge abnormal states and events of energy value reverse metering, and the analysis result can support the operation and maintenance work of the energy metering management system, improvethe work efficiency and enhance the system operation reliability.