Abstract: An intelligent body temperature detection system was developed to automatically collect and process the body temperature parameters of hospitalized patients with different heights during the epidemic prevention and control period. The system first uses a lifting mechanism to adjust the height of the infrared thermometer according to the height data of the inpatients measured on the spot, so as to ensure that the body temperature detection positions of the inpatients are consistent. Then, the ID card reading technology is used to identify the ID, and then the facial and finger information recognition technology is used to identify the dual-person characteristics, so as carry out the matching judgment of person and the card to ensure the authenticity and validity of the identity of the inpatients. Finally, environmental temperature compensation and distance compensation measures are taken to improve the measurement accuracy, and the body temperature data are collected and processed. The system can accurately identify the identity of the people to be tested and effectively meet the needs of automatic non-contact temperature detection and diversion for people with different height during the epidemic. During the epidemic prevention and control period, the use of this system can effectively reduce the temperature testing workload of medical staff and reduce the risk of virus infection of related personnel.