A glassy Fe-base alloy plate with a composition of Fe 36 Co 36 B 20 Si 4 Nb 4 (at.%) was prepared by a twin-roller continuous casting method. The alloy plate had a width of 70mm, a thickness of 0.5mm and a length of 150mm. The cast plate contained small crystalline grains in the glassy matrix. These crystalline grains were identified as an α-Fe (cI2) phase. Thermal characteristics of the plate are almost consistent with those of the melt-spun ribbon, while the exothermic heat of crystallization for the cast plate is about 5% smaller than that for the ribbon. The coercive force (H c ) and maximum permeability (μ m ) of the Fe-base alloy in a ring form of 10mm in outer diameter, 5mm in inner diameter and 0.6mm in thickness made by mechanical machining from the cast plate are 2.1A/m and 40,000, respectively, for the as-cast one, and 1.6A/m and 170,000, respectively, for the annealed one at 723K for 1800s under rotation magnetic field of 80kA/m. It can be thus said that the cast plate has good soft magnetic properties. The possibility of forming a glassy alloy plate by twin-roller continuous casting is confirmed and the Fe-base glassy alloy plate produced by the developed continuous process will be applicable for magnetic parts.