Cost-effective, low temperature, chemical bath deposition technique has been used to prepare Lithium–niobate (LiNbO3) nanostructures. The deposition process was maintained over a quartz substrate for two different samples with and without annealing at 500 °C. A hexagonal structured LiNbO3 with maximum diffraction peak at (012) diffraction plane for both samples with a slight shifting toward 2θ=23.86 for the sample without post heat treatment. The optical absorption reveals the lower absorbance for the unannealed sample with energy gab shifting from (3.2) to (3.65) after the annealing process. The FTIR results insure the formation of the LINBO3 material and agree with x-ray diffraction results.