The invention discloses an efficient amorphous alloy medium frequency transformer for direct-current networking. The efficient amorphous alloy medium frequency transformer comprises an iron core, windings, an epoxy board and a support. The windings are wound around the iron core. The iron core is of an amorphous alloy AFCC-1000 wound core single-phase dual-column structure. The windings include the primary winding and the secondary winding, wherein the primary winding is formed by winding and connecting two copper sheets in series, and the secondary winding is formed by winding and connecting two flat wires in parallel. The wiring mode of the primary winding is series connection. The wiring mode of the secondary winding is parallel connection. The outmost side of the primary winding and the outmost side of the secondary winding are each sleeved with an insulation layer. The whole part composed of the iron core and the windings is connected with the epoxy board through the support. The working frequency of the medium frequency transformer is 1 kHz. Compared with a transformer adopting silicon steel sheet iron cores with the same voltage grade and the same capacity, the efficient amorphous alloy medium frequency transformer has the advantages of reducing the size, reducing no-load losses, improving the power density and the like.