Disclosed are a smart eyewear system, smart glasses, and a method for instant messaging playback. The smart eyewear system includes smart glasses and an intelligent terminal communicatively connected with the smart glasses. The intelligent terminal is configured to obtain at least one instant message and send push information of the at least one instant message to the smart glasses; and the smart glasses are configured to play the at least one instant message in a voice form according to the push information. With the smart eyewear system, the smart glasses, and the method for instant messaging playback, playing instant messages in a voice form is achieved via the smart glasses.