Flow control circuit of water purifier

The utility model discloses a water purifier flow control circuit, which comprises a battery, and a main control module, a flowmeter module, a reset switch module and a display module which are connected with the battery, the flowmeter module is used for metering the water yield of a water purifier, and the main control module displays the residual filterable water quantity of a filter element of the water purifier through the display module according to the water yield. The reset switch module is used for resetting the residual filterable water quantity displayed by the display module; the total amount of water capable of being filtered by the filter element is preset in the main control module, the remaining filterable amount of water of the filter element of the water purifier is displayed through the display module after the water outlet amount metered by the flow meter module is deducted, a user can conveniently check the remaining filterable amount of water of the filter element in real time, namely, th