Abstract: Ni-Nd-B samples were prepared by arc-type melt-spinning/suction casting techniques, and then were analyzed by X-ray diffraction, scanning electron microscopy and differential thermal analyses and with static magnetic tester. The results show that 6 mm-diameter bulk amorphous samples have been prepared, which conform with the depth eutectic theory and show relatively ideal glass forming ability. The undercooling temperatures of Ni4NdB and Ni13Nd3B2 are 79.13 ℃ and 69.37 ℃, respectively. The trace changes of Ni, Nd compositions cause evident crystallization of materials, and they also lead to the decrease in material coercivity and saturation magnetization.