The utility model discloses an amorphous alloy transformer coil structure. The coil structure comprises a rectangular high-voltage coil and a rectangular low-voltage coil, wherein the high-voltage coil is wound outside the low-voltage coil; heat dissipation oil passages are formed by respectively separating two adjacent layers of low-voltage copper foils between the long sides of the two sides of the low-voltage coil through a plurality of stays arranged at intervals; and a cardboard is arranged on the inner surface of one low-voltage copper foil arranged outside one heat dissipation oil passage so as to enable the external ends of the stays to be propped against the inner surfaces of the low-voltage copper foils arranged outside the heat dissipation oil passages. According to the coil structure provided by the utility model, flexural strength of the low-voltage copper foils can be enhanced when the transformer is short-circuited suddenly, so that the widths of the heat dissipation passages are even, and accordingly, the transformer can meet the temperature rise requirement.