Zinc Aluminate (ZnAl2O4) thin filmshave been deposited on glass substrates using chemical spraypyrolysis technique by varying the substrate temperature from 350 C to 450 C (in steps of 50 C). The effect of substrate temperature onthe structural, optical, morphological, and luminescence properties of the obtained films have been investigated. Films which were characterized had a thickness of the order of a few micrometers. The XRD pattern reveals that the synthesized films are preferentially oriented along the (311) plane. Opticaltransmittance for these films is Maximum along the (NIR) near-infrared region and visible region. Moreover, these films possessed band gap energy in the range of 3.84-3.90 eV. SEM images confirm the presence of spherical-shaped particles with a porous crystalline structure. From the Photo Luminescence spectrum, it is observed that the film deposited at 400 C exhibited the highest peak intensity for all observed emission bands. Zinc Aluminate (ZnAl2O4) films show emission bands at 483 nm (blue), and 663 nm (red) under 350 nm and 244 nm excitation respectively.