In this paper, EDTA@SnSe2 nanosheets have been prepared via cost effective and simple solvothermal method. The synthesized sample was heated up to 300 °C to examine the influence of annealing upon material’s structural and optical characteristics. The structural analysis of sample annealed at 300 °C disclosed the formation of SnSe2 nanosheets with hexagonal crystal structure. The field emission scanning electron microscope (FESEM) micrographs confirm the formation of plate-like morphology. Energy dispersive x-ray (EDX) analysis confirmed the formation of SnSe2 and SnO2 which was also verified by the X-ray diffraction (XRD) pattern. UV-Vis and photoluminescence spectroscopic techniques were used to investigate the absorption and emission characteristics of the samples. The energy bandgap observed for the sample annealed at 300 °C was found to be 2.75 eV whereas the PL spectra represented two emission bands lying at 380 nm and 472 nm. The vibrational properties of the SnSe2 sample were examined by employing FTIR spectroscopic technique.