Ni-Mo　alloys　have　been　studied　as　a　prospected　cathode　for　its　higher　hydrogen　evolution　reaction　properties　than　other　binary　compounds.　The　eletrodeposition　parameters　and　its　effects　have　been　investigated　in　forming　Ni-Mo　alloys　in　the　present　study　by　measuring　the　structure　and　properties　of　deposits.　The　forming　mechanism　of　Ni-Mo　amorphous　deposit　is　discussed　from　point　of　the　elements　component　of　view.　The　X-ray　diffraction　(XRD)　analysis　and　scanning　electron　microscopy　(SEM)　microstructures　show　that　the　molybdenum　content　in　the　deposit　is　increased　with　the　molybdate　concentration　increase,　and　the　deposit　structure　can　be　parted　several　stages-nanocrystal,　nanocrystal/amorphous,　amorphous,　crystalline,　or　the　mixed　configuration　due　to　the　variation　of　Mo　atom　content.　The　forming　mechanism　of　the　deposit　of　Ni-Mo　alloys　is　attributable　to　the　repulsive　aggradations　as　of　the　molybdenum　chemical　properties　and　electronic　shell　structure.　When　the　atom　rate　of　Ni/Mo　is　higher　than　0.35,　the　deposit　is　the　face　center　cubic　(fcc)　configuration,　while　lower　than　0.35,　the　deposit　is　the　monoclinic　hexagon　crystalloid　configuration　or　body　center　cubic　(bcc)　dimensional　structure.