The invention discloses a control device of a household stirrer, which is used for stirring substances in a vessel. The control device comprises a knob, a main controller, a motor as well as a display and alarm module, wherein the knob is connected to a single chip microcomputer and is used for selecting a stirring speed; the main controller is connected with a power supply through a power bus and is connected to the knob; the motor is connected to the main controller through a power lead, the main controller controls the rotation speed of the motor according to the stirring speed selected bythe knob, and the motor feeds back the rotation speed to the main controller; and the display and alarm module is connected to the main controller and is used for sending alarm signals of a system fault. The invention also provides a control method of the household stirrer. In the control device and method of the household stirrer, hardware and software are combined so as to enable the safety of an operator to be completely grasped by the operator per se, and therefore, the personal safety of the operator is guaranteed.