At　present,　alloy　materials　are　being　widely　used　as　wear-resistant　coatings　due　to　good　mechanical　properties.　In　this　paper,　electrodeposition　was　used　to　prepare　a　Co-Mo　coating.　The　influence　of　parameters　on　the　phase,　morphology,　composition,　and　property　of　the　coating　has　been　studied,　and　the　electrochemical　mechanism　has　been　deeply　studied.　The　study　of　process　parameters　found　that　when　the　concentration　of　Na2Mo4　is　0.05　mol/L,　the　concentration　of　C6H5Na3O7　is　0.15　mol/L,　the　pH　of　the　solution　is　7,　and　the　temperature　is　50　degrees　C,　the　content　of　Mo　in　a　Co-Mo　coating　is　39.56%,　and　the　microhardness　reaches　the　maximum　value　of　503　HV.　The　study　of　electrochemical　behavior　found　that　the　optimization　of　process　parameters　bringsa　positive　shift　in　the　reduction　potential,　an　increase　in　the　exchange　current　density,　and　a　decrease　in　charge　transfer　impedance.　The　microhardness　of　a　Co-Mo　coating　prepared　with　the　leaching　solution　of　Mo-containing　waste　after　component　control　of　the　plating　solution　is　483.6　HV,　which　is　valuable　to　the　high-value　recycling　of　Mo　secondary　resources.