The normal temperature standard for infants varies with different methods of temperature measurement. It is generally between 36℃ and 37℃. The commonly used clinical body temperatures are axillary temperature, oral temperature and rectal temperature, and the commonly used temperature measurement method is axillary temperature measurement, the normal value should be 36℃～37℃; while the normal range of oral temperature should be 36.3℃～37.2℃; the normal value of rectal temperature is higher than that of the oral temperature is generally about 0.3℃～0.5℃. Due to the newborn’s central nervous system development is not yet mature, the skin sweat gland development is not yet perfect, so its thermoregulation function is poor, easy to be affected by the outside world and change, at the same time the metabolic rate is higher, so its body temperature is higher than that of the adults, but the magnitude of the high is low. If an infant’s temperature exceeds the normal range by more than 0.5℃ (i.e. ≥37.5℃), fever should be considered. When taking temperature in infants, it is important to specify the correct measurement to avoid errors.