The invention discloses a mobile terminal and a basal body temperature measuring and monitoring method thereof. The method includes A, starting a basal body temperature measuring mode, acquiring basal body temperature of a user and storing the basal body temperature into a body temperature database; B, comparing the basal body temperature measured in this time with the basal body temperature of the previous day, if the former is higher than the later, starting an ovulation day monitoring mode, and if the former is lower than the later, starting a menstrual period monitoring module; C, displaying data analysis and processing results of each monitoring mode, storing the data analysis and processing results in the body temperature database, and reminding the user of current physiological conditions. By the mobile terminal and the basal body temperature measuring and monitoring method, long-term self-checking can be realized by the user, data analysis and processing can be performed on measured basal body temperature, the user can be reminded of current physiological states, and the user can be reminded when abnormality occurs to enable the user to see the doctor and get a definite diagnosis as soon as possible, so that great convenience is brought to vast women of childbearing age for basal body temperature monitoring.