The utility model relates to a temperature control plug, which comprises a casing, a temperature sensing pipe and an electronic control component, wherein, the output end of the temperature sensing pipe and the input end of the electronic control component are connected, and the output end of the electronic control component and a power supply insertion piece are connected. The temperature sensing pipe and the electronic control component are arranged in the casing, and the input end of the temperature sensing pipe and an object to be measured are mutually connected. The utility model has the advantages that structure is novel, time is controlled by a microcomputer, and work time can be randomly selected by a user and can be changed randomly in the working process; after the time is determined, once the working time is reached, the machine can be automatically closed, and accordingly, the function of automatic work is realized. The utility model both saves time and avoids machine breakdown which is caused because of artificial negligence, and the utility model can be used in a plurality of kinds of household appliances.