The　simultaneous　deposition　of　rGO　and　gold　nanostructures　has　been　achieved　by　electrodeposition　from　mixed　solutions　containing　graphene　oxide　(GO)　and　a　gold　precursor.　Scanning　electron　microscope　(SEM),　Raman　spectroscopy　and　atomic　force　microscopy　(AFM)　have　been　employed　to　reveal　the　morphology,　uniformity　and　practical　stability　of　the　nanocomposite　films　on　the　indium　tin　oxide　(ITO)　substrate.　The　AFM　data　showed　heights　of　tens　of　nanometers　of　the　nanocomposite,　suggesting　that　multilayers　of　rGO　with　gold　nanoparticles　had　been　formed　as　a　result　of　the　electrochemical　co-deposition.　Differential　pulse　voltammetry　(DPV),　as　a　widely　used　analytical　technique,　has　been　carried　out　on　the　rGO-Au/ITO　electrode　for　the　quantitative　detection　of　dopamine　(DA).　The　detection　limit　(S/N=3)for　the　determination　of　DA　was　evaluated　as　0.6　μM.　©　2016,　Science　China　Press　and　Springer-Verlag　Berlin　Heidelberg.