Tungsten　carbide　was　used　as　sacrificial　anode　in　NaCl-KCl　molten　salt　to　form　tungsten　ion　dissolution,　with　increasing　anode　potential　of　the　charge　transfer　resistance　decreases,　tungsten　ions　in　molten　salt　of　average　valence　of　+6,　reduction　of　tungsten　ion　for　the　reversible　behavior　of　diffusion　control.　Increasing　the　cathode　distance　and　changing　the　cathode　position　can　effectively　avoid　the　pollution　of　the　anode　residual　carbon　to　the　tungsten　powder　of　cathode　products.　The　particle　size　of　tungsten　powder　increases　with　the　increase　of　cathode　current　density.　When　the　cathode　current　density　is　0.01Acm-2,　anode　potential　1.2V　and　anode　cathode　spacing　45mm,　the　particle　size　of　tungsten　powder　is　about　50nm.　©　2018　Trans　Tech　Publications,　Switzerland.