The invention discloses a method for smelting an iron-based amorphous mother alloy from a recycled amorphous transformer iron core. Adopted raw materials comprise the recycled iron core and conventional raw materials including Fe, Si and B, an auxiliary material comprises a slagging constituent, a waste amorphous transformer iron core material which is subjected to oil removing and glue removing treatment after being recycled is adopted as the recycled iron core, and the weight of the recycled iron core accounts for smaller than or equal to 30% of the total weight of the raw materials. According to the method, the recycled waste amorphous transformer iron core can be smelted again, the iron-based amorphous mother alloy meeting the amorphous alloy ribbon making requirements is prepared, andthe purposes of saving resources and reducing the production cost are achieved.