Intelligent IC card water meter is a new type of water meter that uses modern microelectronics technology, modern sensing technology, and intelligent IC card technology to measure water consumption, transmit water data, and settle transactions. This is a significant improvement compared to traditional water meters that generally only have the functions of flow collection and mechanical pointer display of water consumption. The intelligent IC card water meter can not only record and electronically display water consumption, but also automatically control water consumption according to agreements, and automatically calculate water fees for tiered water prices. At the same time, it can also store water usage data. Due to its data transmission and transaction settlement being carried out through IC cards, it is possible to achieve a transformation from on-site meter reading and charging by staff to users paying fees at their own offices.