One-dimensional　Ni/Ni3C　core-shell　nanoball　chains　with　an　average　diameter　by　around　30　nm　were　synthesized　by　means　of　a　mild　chemical　solution　method　using　a　soft　template　of　trioctylphosphine　oxide　(TOPO).　It　was　revealed　that　the　uniform　Ni　nanochains　were　capped　with　Ni3C　thin　shells　by　about　1-4　nm　in　thickness　and　each　Ni　core　consists　of　polygrains.　The　coercivity　of　the　core-shell　nanochains　is　much　enhanced　(600　Oe　at　5　K)　and　comparable　with　single　Ni　nanowires　due　to　the　one-dimensional　shape　anisotropy.　Deriving　from　the　distinctive　structure　of　Ni　core　and　Ni3C　shell,　this　architecture　may　possess　a　possible　bifunctionality.　This　unique　architecture　is　also　useful　for　the　study　on　the　magnetization　reversal　mechanism　of　one-dimensional　magnetic　nanostructure.