The utility model relates to a light source structure for optical disk ultraviolet curing. The light source structure for optical disk ultraviolet curing is characterized by comprising a light source installed on the heat dissipation fins of a water-cooling heat dissipater, wherein the light source is composed of a plurality of fan-shaped LED ultraviolet surface light source modules with the same size to be annular, and each of the LED ultraviolet surface light source modules is provided with an independent circuit input port; the diameter of the annular light source is greater than that of an optical disk; the upper surfaces of the heat dissipation fins are planes and contacted with the light source, and the lower surfaces of the heat dissipation fins are fin-shaped. According to the light source structure for optical disk ultraviolet curing disclosed by the utility model, curing is carried out on the optical disk by using an LED ultraviolet light source with a 100W light power density of 7W/cm<2> and adopting a scanning mode due to a high LED light-emitting efficiency, thus greatly reducing the heat generated by the light source curing, reducing the attenuation of the light source, ensuring the consistency of the light source curing, and reducing the production cost.