Non-stoichiometric　copper　sulfide　(Cu　xS)　hexagonal　nanoplates　were　synthesized　through　a　simple　refluxing　method　using　ethylene　glycol(EG)　and　poly(N-vinyl-2-pyrrolidone)　(PVP)　as　solvent　and　capping　agent,　respectively.　The　as-synthesized　samples　were　characterized　by　X-ray　diffraction　(XRD),　transmission　electron　microscopy　(TEM),　UV-Vis　spectroscopy　and　cyclic　voltammetry　(CV).　TEM　observations　show　hexagonal　plate　morphology　of　the　as-synthesized　samples.　XRD　results　show　that　the　products　evolve　from　covellite　CuS　to　digenite　Cu　1.8S　with　the　increase　of　Cu/S　molar　ratio.　In　addition,　it　is　found　that　the　optical　and　electrochemical　properties　of　the　as-synthesized　samples　change　remarkably　with　the　variation　of　their　composition.