The ceramic snap type automatic reset temperature controller is mainly used for temperature control of air conditioners, drinking fountains, electric water bottles, electric rice cookers, disinfection cabinets, coffee pots, electric steamers and other electrical appliances. Its working principle is: using a disc type bimetallic plate as a temperature sensing element, when the temperature rises to a certain value, the disc suddenly jumps, and the transmission contact acts quickly; When the temperature drops to a certain value, the disc resets, and the contact also recovers to the original state, so as to make and break the circuit. The utility model has the advantages of small size, light weight, no arcing, high reliability, long service life, less radio interference, etc.