The invention provides ultraviolet, visible and near-infrared light absorbing glass. The glass contains the following elements, in percentages by molar: 0-10% of an iron element, 0-5% of a vanadium element, 0-5% of a nickel element, 0-5% of a cobalt element, 0-3% of a copper element, and 0-0.5% of a molybdenum element. The invention also provides a preparation method and application of the above visible light absorbing glass. According to the method provided by the invention, the ultraviolet, visible and near-infrared light absorbing glass prepared by the method has a higher light absorption effect in the range from 200 nm to 2500 nm, and the ultraviolet, visible and near-infrared light absorbing glass has transmittance of <=0.1% at a thickness of 0.20 mm; and meanwhile the ultraviolet, visible and near-infrared light absorbing glass is easy to form, has no internal defects such as bubbles, stone and stripes, and has good anti-crystallization performance, moisture-resistant stability and component stability, and the thermal performance satisfies requirements for a preparation process of optical fiber imaging components.