The embodiment of the invention provides an intelligent drinking water device and its control method. The intelligent drinking water device includes a mechanical switch, an electronic switch and a controller, the controller is used for judging whether water is normally used or not according to the on-off state of the two switches, if yes, a water discharge amount detection device is indicated to acquire the water discharge amount, if no, the electronic switch is controlled to be turned off, and a playing command is sent to a voice playing device. The control method includes the following steps that the states of the mechanical switch and the electronic switch are detected in real time; when the electronic switch is switched from the off state to the on state, whether the mechanical switch is in the on state or not is judged, if yes, the electronic switch is turned off, a prompting voice is output, if no, the water discharge amount is acquired when the mechanical switch is switched from the off state to the on state. Through the addition of the electronic switch, the states of the two switches are detected in real time, the mechanical switch and the electronic switch have set turning-on sequences, hot water does not flow out easily, and the safety of users and children is ensured to the greatest extent.