a novel coronavirus pneumonia monitoring system was designed for monitoring the temperature of the COVID-19 with a centralized isolation population. It also applies to scenes requiring continuous monitoring of body temperature and common use.The design was based on MCU,the temperature acquisition module collected the wrist surface temperature and the external environment temperature respectively, compensated the influence of the environment temperature on the wrist temperature by the least square fitting method, and then transmited to the mobile phone through the Bluetooth module. The mobile terminal could display the body temperature value in real time. When the temperature was abnormal, it could display the abnormal reminder and view the historical temperature data. After testing, the measurement error of the system is less than 0.1 ℃, and it has good stability, high real-time performance, good visual effect and easy function expansion.