Abstract: The present eye activity monitoring system comprises a monitoring apparatus for acquiring the eye image of a user in a closed eye state and an image-processing apparatus for generating an alarm signal based on the eye image. The monitoring apparatus comprises an eye mask, an image-sensing unit positioned on the eye mask, a control circuit electrically connected to the image-sensing unit, a transmitting module electrically connected to the control circuit, an antenna electrically connected to the transmitting module and at lease on power supply positioned on the eye mask. The image-processing apparatus comprises a receiving module and an image-processing module. The image-processing module judges the eye status according to the acquired feature of the eye image, and sends a warning alarm to trigger the warning device when an abnormal event occurs.