The　mechanically　strengthened,　highly　cube　textured　Ni-5　at.%W　(Ni5W)/Ni-9.3　at.%W　(Ni9W)　composite　substrates　have　been　developed　as　a　possible　low　magnetic　and　reinforced　substrate　for　coated　conductors.　The　key　configuration　of　this　composite　substrate　was　the　use　of　a　thin　but　sharp　cube　textured　Ni5W　out-layer　on　a　Ni9W　alloy　core　that　ensures　the　mechanical　reinforcernent　while　reducing　the　magnetism　of　whole　substrate.　The　prepared　composite　tapes　had　a　sharp　and　pure　cube　texture　in　the　top　Ni5W　layer.　The　percentage　of　the　cube　texture　component　was　as　high　as　92%　within　a　misorientation　angle　of　less　than　8　degrees　from　EBSD　measurement.　The　Ni5W　surface　of　the　composite　substrate　was　very　smooth　and　a　roughness　(RMS)　of　22　nm　was　obtained.　The　yield　strength　of　textured　composite　substrate　was　210　MPa,　60　MPa　higher　than　that　of　the　Ni-5　at.%　W　substrate,　while　the　magnetization　of　the　whole　substrate　was　dramatically　reduced.