The invention provides an infant health status monitoring device and method. The method includes the following steps: using an oral tongue coating image acquisition device, a facial image acquisitiondevice, a first image processing device, a second image processing device, a first infrared temperature sensor, a second infrared temperature sensor, a third infrared temperature sensor, a heart rateblood oxygen sensor, a pressure sensor, an ultrasonic distance-measuring sensor, a microcontroller, a storage device, a display device, and a communication device; displaying a detection result through the display device, and meanwhile, transmitting the detection result of the infant health to a health big data cloud platform through the communication device; packaging and encrypting the health data detected by the microcontroller to generate encrypted data packets; controlling, by the microcontroller, the communication device to transmit the encrypted data packets to the health big data cloudplatform through a wireless transmission network, the cloud platform transmits the decrypted data to the cloud database; sending, by the cloud platform, the decrypted data to a cloud database; and comparing, by the cloud database, the data with standard data to analyze the infant health condition.