Mo-Cu　nano-particles　were　synthesized　by　a　microwave-assisted　aqueous　solution　strategy　and　subsequent　low-temperature　hydrogen　reduction　process.　Microwave　radiation　can　promote　nucleation　in　the　aqueous　solution　resulting　in　fine　particles　with　a　high　specific　surface　area,　so　they　can　be　reduced　at　an　ultra-low　temperature.　The　prepared　Mo-Cu　composite　powders　with　size　ranging　from　10　to　50　nm　possess　a　Mo@Cu　core-shell　structure　in　their　grains,　whose　relative　density　can　reach　up　to　99.4%　after　being　sintered　at　1150　C　for　1.5　h.　(C)　2014　Elsevier　B.V.　All　rights　reserved.