Abstract: MgO thin film was deposited on a siliconglass substrate using home built spray pyrolysis method at 230°C. Aqueous solution of 50 mL containing magnesium chloride hexahydrate was sprayed as a fine mist at a pressure of 2 kg cm-2 with a flow rate of 3 mL min-1 on a preheated glass substrate. The optical property, structural property and surface morphology of the film was analyzed without any post annealing and those properties were studied by photoluminescence spectroscopy, X-ray diffraction (XRD), UV-VIS spectrophotometer, Field Emission Scanning Electron Microscopy (FESEM) and the obtained results were discussed.