Chlorinated　organic　solvents　(COSs)　are　a　significant　threat　to　human　beings.　In　this　study,　nanoscale　bimetallic　Ni/Fe　particles　were　synthesized　from　the　reaction　of　sodium　borohydride　(NaBH4)　with　the　reduction　of　Ni2+　and　Fe2+　in　an　aqueous　solution.　The　synthesized　nanoscale　zero-valent　iron　(nZVI)　and　Ni-nZVI　were　characterized　by　SEM　(scanning　electron　microscopy),　XRD　(X-ray　diffractometer),　Brunauer-Emmett-Teller　(BET),　and　transmission　electron　microscopy　(TEM).　The　removal　performance　of　trichloroethylene　(TCE)　over　the　nZVI　catalyst　and　Ni-nZVI　was　evaluated.　Ni-nZVI　with　different　Ni　contents　exhibited　good　reactivity　towards　the　dechlorination　of　TCE　over　a　1h　period,　and　the　pseudo-first-order　rate　constant　for　TCE　dechlorination　by　Ni-nZVI　was　1.4-3.5　times　higher　than　that　of　nZVI.　Ni-nZVI　with　5　wt%　Ni　contents　exhibited　the　best　dechlorination　effect;　the　removal　rates　of　TCE　and　its　by-product　dichloroethylene　(DCE)　were　100%　and　63.69%,　respectively.　These　results　indicated　that　the　Ni　nanoparticles　as　the　second　dopant　metal　were　better　than　nZVI　for　TCE　degradation.　This　determination　of　the　optimal　Ni-NZVI　load　ratio　provides　a　factual　and　theoretical　basis　for　the　subsequent　application　of　nano-metal　binding　in　the　environment.