The invention relates to the technical field of pressure casting of amorphous materials, in particular to an electric arc smelting pressure casting method for amorphous alloy. The electric arc smelting pressure casting method comprises the following steps: (1) inputting raw materials; (2) conducting air extraction and injecting inert atmosphere; (3) conducting electric arc smelting; (4) cooling; (5) conducting air extraction; (6) pouring liquid; (7) conducting pressure casting. According to the invention, the procedures of manufacturing master alloy and alloy ingots are eliminated; all the metallic raw materials used for preparing the amorphous alloy are directly placed in a smelting chamber of a pressure casting machine for pressure casting after direct smelting; the pressure casting method is simple in procedure, short in production hours, and high in production efficiency, and can prevent carbides from mixing in the smelting liquid; cleanliness of the smelting materials is high; the cleaning condition in the smelting chamber can be maintained; the quality of amorphous alloy products is greatly improved; the manufacturing cost can be reduced.