An intelligent IC card water meter is a new type of water meter that uses modern microelectronics technology, modern sensor technology, and intelligent IC card technology to measure water consumption and transmit and settle water usage data. It not only records and displays water consumption electronically but also automatically controls water usage as per agreements and calculates tiered water rates automatically. Additionally, it has the function of storing water usage data. As the data transmission and transaction settlement are done through IC cards, it enables a shift from staff visiting for meter reading and billing to customers making their own payments at service outlets.