The utility model discloses an use temperature -detecting device of baroceptor, but including the casing of baroceptor and heat conduction, the casing include a cavity and with the hole of cavity intercommunication, the baroceptor is installed and downthehole and be connected with housing seal to make the cavity keep at encapsulated situation, the cavity intussuseption is filled with the amount of substance's of known packing temperature and packing dry air. The utility model discloses response time is extremely short, can realize the real -time measurement of temperature, helps intelligent drinking water equipment to provide the better service, small in size, compact structure compares and more is suitable for the limited electronic product of inner space in traditional complex construction's detection device, it has good waterproof shock resistance ability, long service life simultaneously, simple structure, low cost.