The invention discloses an electricity-saving controlling device of an interactive intelligent drinking machine, which relates to the application of a microcontroller on the aspects of saving electricity and controlling the drinking machine. The electricity-saving controlling device comprises a device feed circuit (1), a countdown shutdown circuit (2), a display circuit (5), a sound circuit (6), a timing starting circuit (3) and a starting feed circuit (4), wherein the input end of the device feed circuit (1) is connected with the input end of the commercial power of an original drinking machine circuit (0), and the output end of the device feed circuit (1) is connected with the circuits of the device. The countdown shutdown circuit (2) completes the functions of sending and the receiving of infrared signals, the overtemperature detection, water deficiency detection, the countdown, the control of the drinking machine power supply and the sound prompt. The display circuit (5) is connected with the display output end of the countdown shutdown circuit (2) so as to have countdown display. The timing starting circuit (3) completes the timing starting function through the starting feed circuit (4). The electricity-saving controlling device determines the shutdown time according to the specific using condition of a user and has corresponding sound and voice prompt, has no stand-by power consumption because the shutdown is in full shutdown state, and also has the function of timing starting in advance.