The Al-Ni-Y-X (X=Cu, Ta, Zr) thin film metallic glasses are manufactured by sputtering, and their optical reflectivity characteristics are explored. The relationship among composition, atomic structure and reflectivity performance is established. Compared with pure Al films, the Al-Ni-Y film surface roughness is much lower and hardness is much higher, more suitable for optical reflector applications. For composite Al-Ni-Y films, the reflectance varies within 80-91%. For fully amorphous films, the reflectivity exhibits unusual uniform reflection at similar to 70%, perfect for broad-band reflector. (C) 2014 Elsevier B.V. All rights reserved.