The invention discloses a method for using an electric rice cooker to make wine and a control module thereof. By using the method and the control module of the invention, an insulation problem during a household wine brewing process can be solved. An electric heating function of the electric rice cooker is used. A specially-designed electronic thermostatic control module is added and is connected in series in an original alternating current circuit of the electric rice cooker so as to reduce heating power of the electric rice cooker, control on or off of a heating circuit and make an internal temperature keep at a constant index which is suitable for the wine brewing. The electronic thermostatic control module comprises a voltage stabilizing circuit, a temperature sensing circuit, a voltage comparison circuit, a contactless time delay switch circuit and the like. A thermistor is used to acquire temperature information and convert the information into the voltage. The voltage is output after comparison through using a voltage comparator. The on or off of the contactless time delay switch circuit formed by a thyristor is controlled. The control module only has two terminals which are connected with an external circuit. The temperature sensor is integrated with a circuit board of the module. Structural integrity is good. The control module can be conveniently installed on a bottom of the electric rice cooker.