Infant temperature measurement methods are as follows: First, the axillary thermometry method is most commonly used clinically, the sterilized mercury head of the thermometer is placed in the armpit of the child, and the upper arm is pressed firmly into the armpit to maintain 5-10 min, which is characterized by safety and convenience. Second, the anal thermometry method can be used for younger children or children in coma and shock who cannot cooperate, the child will take a lateral position and lower limbs flexed, will be coated with lubricant anal table mercury head gently inserted into the anus 3-4cm, temperature measurement 3-5min can be, its characteristics are short, accurate temperature measurement time. Third, the in-ear thermometry method is less used clinically, is to use a special instrument into the ear to determine the temperature, its characteristics are accurate, fast and does not cause cross-infection, the general anal thermometry and in-ear thermometry measured by the normal body temperature than the axillary thermometry method is about 0.5 ℃ higher.