Bulk metallic glasses (BMGs) with high thermal stability, good mechanical properties and high corrosion resistance were synthesized in the Ni–Nb–Zr system. A large bulk glass-forming region with 60<Ni<64, 28<Nb<38 and 0<Zr<9 (in at.%) was found. The critical size for the glass formation is 3mm. These investigated Ni-based BMGs process high glass transition temperature of about 880–900K and high on-set crystallization temperature of 915–932K as well as high compressive fracture strength of approximate 3.0–3.2GPa along with some compressive plasticity of about 2%. Electrochemical measurements indicate they also exhibit high corrosion resistance, i.e., large passive region above 1.5V (vs. saturated calomel reference electrode, SCE). The influence of the Zr content on the glass-forming ability (GFA) and corrosion behaviors was carefully studied, indicating that some Zr addition improves the GFA and corrosion resistance.