The invention provides a micro-power consumption intelligent digital thermometer and a temperature measurement method, and belongs to the field of industrial temperature measurement equipment. The micro-power consumption intelligent digital thermometer is characterized by comprising a power supply unit and a data processing unit, wherein the data processing unit comprises a biased sampling module, an AD conversion module, a central processing unit and a display module, and the biased sampling module, the AD conversion module, the central processing unit and the display module are sequentially connected. The temperature measurement method includes the following steps that 1, a system is initialized; 2, the biased sampling module is started; 3, AD sampling is started; 4, the central processing unit judges whether sampling is finished; 5, the biased sampling module is cut off; 6, AD conversion is started; 7, the central processing unit judges whether conversion is finished; 8, AD hibernation is conducted; 9, data reading and filtering are carried out; 10, AD cutoff is performed; 11, data calculation and table look-up are carried out; 12, the display module carries out displaying; 13, a refresh time judgment is displayed; 14, the central processing unit hibernates; 15, the central processing unit judges whether hibernation time is reached. The micro-power consumption intelligent digital thermometer has the advantages of micro power consumption, high precision and good stability.