Abstract: The present disclosure provides a full-color COB device, including a substrate, where a light-emitting region is provided on an upper surface of the substrate, the light-emitting region includes a white light-emitting region and an atmosphere lighting region, the atmosphere lighting region is a closed ring-shaped structure, and the atmosphere lighting region encloses the white light-emitting region. A plurality of warm light-emitting modules and a plurality of cold light-emitting modules are disposed in the white light-emitting region, and the warm light-emitting module and the cold light-emitting module are disposed in a staggered manner. A plurality of red light-emitting modules, a plurality of green light-emitting modules, and a plurality of blue light-emitting modules are disposed in the atmosphere lighting region, and the red light-emitting modules, the green light-emitting modules, and the blue light-emitting modules are disposed in a staggered manner.