Water usage management system and management method

The invention provides a water usage management system and a management method which are suitable for a household water usage main pipe. The water usage management system comprises a microprocessor, aflow sensor electrically connected to the microprocessor, a solenoid valve and an electric generator. A faucet adjusts the water flow parameter of the water supply in the water usage main pipe through different opening and closing modes and initiates a water usage request. The flow sensor is used for detecting the water flow parameter and sending to the microprocessor. The microprocessor is usedto identify the water usage request of a user and generate a control signal through the water flow parameter according to a preset user request mode. The solenoid valve is used for receiving the control signal and automatically closing the water usage main pipe after water supply time contained in the control signal is ended. By using the water usage management system and the management method, the user is taught to develo