The invention discloses an intelligent water outlet control method and device and an intelligent milk brewing machine. The intelligent water outlet control method comprises the steps that a target water quantity instruction is received; according to the mapping relation between a predetermined water quantity value and driving parameters, driving parameters corresponding to the received target water quantity instruction are determined; the driving parameters comprise the driving duty ratio and the driving time; according to the determined driving parameters, a water pump is controlled to be opened, and timing is started; and when timing is conducted to reach the driving time in the determined driving parameters, the water pump is controlled to be closed. According to the technical scheme of the intelligent water outlet control method and device and the intelligent milk brewing machine, precise control over the water output quantity of intelligent water output products is achieved.