The "multi-meter" meter reading system is equipped with the function of "multi-meter" data reading and collection by upgrading the software of the national grid meter data collection concentrator. The upgraded concentrator reads smart meters through wireless (carrier wave or dual-mode) or RS485, and water meters, gas meters and heat meters through communication interface converters, thus completing the management work of collecting, statistically analyzing and querying historical data from the four meters. The system utilizes the mature meter data collection system of the State Grid, reduces duplicated investment, and achieves the goal of centralized collection and reading of multiple meters.