The utility model relates to a single-process vibration molding device for a permanent lining of a continuously-casting tundish. A transverse rib plate (2) and a longtidudinal rib plate (6) are welded together in a mutually perpendicular manner and are reinforced through a support plate. A vibration mechanism (5) is fixed on the transverse rib plate (2). A permanent lining molding bed (4) is disposed on a precast block (3) and the permanent lining molding bed (4) and a tundish steel shell (1) are fixed with a fastening device (7). Therefore, the integration of a traditional step-by-step knot-tying is realized. The single-process vibration molding device for the permanent lining of the continuously-casting tundish is economical, practical, time-saving and labor-saving and has great promotion benefits.