The invention discloses a drinking water intelligent supplementing system in a small-scale farm. The system is characterized in that the system mainly comprises a first pressure sensing device, a second pressure sensing device, a third pressure sensing device, a logic circuit, an information transmitting device, a control mobile phone, a switching mobile phone, a voice-operated switch and a motor; the first pressure sensing device, the second pressure sensing device and the third pressure sensing device are separately connected with the logic circuit which is connected to the information transmitting device, and the information transmitting device is separately connected with the control mobile phone and the switching mobile phone; the switching mobile phone is connected to the voice-operated switch; and the voice-operated switch is connected to the motor. The system is low in cost, strong in practicality and not high in installation precision. The system can control on-off of a water supply motor at a distance and intelligently control turn-off of the water supply motor.