The invention discloses an intensive optical wave multiplexing optical filter, which comprises a substrate, and an optical filter layer and an anti-radiation layer which respectively cover two opposite surfaces of the substrate, and is characterized in that the surface, opposite to the substrate, of the optical filter layer is also provided with an anti-scraping layer, so that the optical filter layer can be prevented from being damaged due to friction when polishing operation is required subsequently, and the yield of the optical filter is ensured; meanwhile, the first dielectric sub-layer forming the filter layer is made of silicon hydride, so that the total layer number of the filter layer is reduced to be not more than 84, and the layer thickness is not more than 20 [mu] m. Compared with the prior art, the thickness of the filter layer is greatly reduced, and light loss, light path disruption and stress accumulation caused by over-thickness of the filter layer are effectively inhibited; and the overall manufacturing cost is reduced.