Two-year-old baby body temperature measured by the axillary method is normal for 36 ~ 37 ℃, intra-anal thermometry is normal for 36.5 ~ 37.5 ℃. 1. Axillary method: is the most commonly used, the safest and most convenient way to measure body temperature, generally need to keep the armpit clamping thermometer mercury head for 5 minutes, normal 36 ~ 37 ℃, consistent with adults. 2. Intra-anal thermometry: the need to take the side of the child lying position, the anal table mercury head needs to be coated with lubricant, inserted into the anus for 3 to 5 minutes, the normal value is slightly higher than the armpit, 36.5 ~ 37.5 ℃. In addition, there is the oral method also belongs to the common temperature measurement method, but applies to children over 6 years old, the normal temperature is about 37 ℃. If the temperature of a two-year-old baby is abnormal, the cause should be clarified and actively treated under the guidance of a doctor.