The photonic band structure of one-dimensional metallic cladding photonic crystals was simulated by the transfer matrix method (TMM).By inserting metal Ag layers between C60 and AlN layers,a new metallic cladding photonic crystal (C60/Ag/AlN)n could be made.The new structure shows a wider band gap than in the structure of (C60/AlN)n in UV region.The modes can broaden the band gaps by 73.91% and exhibit a high reflectivity of 91.01%.The metallic cladding photonic crystals is ideal candidates for making reflector.The characteristics of the structure could be used in a low-loss broad band reflector.