An electronic incense assembly includes a burning chamber, an electronic stick, a camera module, an image processor and a controller. The burning chamber includes a sidewall. The electronic stick is positioned on the burning chamber, and includes a light guide bar and a light source. The light guide bar includes a first end and a second end away from the first end. The light source is positioned on the second end. The camera module is positioned on the sidewall. The image processor includes an environment brightness sensor. The controller is electrically connected to the camera module and the image processor. The environment brightness sensor is configured to sense an environment brightness based on a captured image captured by the camera module. The controller is configured to receive the environment brightness and to drive the light source to emit suitable light according to the environment brightness.