Chemical bath deposition method was employed for the deposition of smooth quantum size Ag2O nanostructure thin film on glass substrate at three different chemical interaction times. The structural properties shows the demonstration of Ag2O cubic structure at (002) diffraction plane. Optical properties reflect the dependence of energy gab on the interaction time with moderate band gab energy of about 2.25eV.Other physical properties such as SEM, AFM, was also investigated.