The invention discloses an intelligent service method based on a mobile power supply and a system thereof. The method comprises: a control center controlling a monitoring camera to be started and controls a water supply device to extend out after receiving a starting instruction; the control center controlling the water supply conduit and the power supply device to extend out; the control center controlling the water supply switch device to be started and analyzes whether a human body puts the water supply conduit into the water supply conduit; if yes, controlling the switch port to be openedand controlling the water supply device to be started; the control center obtaining state information fed back by the water supply button and analyzes whether the water supply button is in a pressed state; if yes, controlling the switch port to close and controlling the water supply device to close; the control center obtaining power supply information of the power supply device and analyzing whether the power supply device is in a power supply state; and analyzing whether mobile equipment for charging is placed above the power supply device in the power supply state, if yes, controlling the power supply device to ascend by the preset height, intelligently providing drinking water and a mobile power supply for personnel in the office, and the personnel in the office are prevented from finding a water source and a socket.