In　this　paper,　Cu2O/Cu　porous　granular　films　were　prepared　by　electrodeposition　in　copper　sulfate　solution　containing　triethanolamine　and　in-situ　oxidation　strategies.　The　effects　of　the　amount　of　triethanolamine,　electrodeposition　time　and　annealing　temperature　on　the　morphology,　structure　and　electrochemical　properties　of　the　granular　film　were　investigated,　and　the　related　reasons　were　discussed.　Results　show　that　the　CV　curves　of　the　as-prepared　sample　have　a　pair　of　redox　peaks　with　good　symmetry　and　reversibility　in　1　M　KOH　solution　at　a　potential　window　from　-1　to　-0.2　V,　corresponding　to　the　conversion　process　between　Cu2O　and　Cu.　When　the　amount　of　triethanolamine　is　0.2　wt%,　the　deposition　time　is　3　min,　and　the　annealing　temperature　is　200　degrees　C,　the　capacitance　of　the　sample　reaches　the　maximum　value　of　158.8　mF/cm(2).　Moreover,　the　sample　has　a　good　cycling　stability　with　85.9%　of　its　original　capacitance　value　after　3000　cycles.　(C)　2019　Elsevier　B.V.　All　rights　reserved.