A high-overcurrent stacked coil (1). The coil is formed of ring-shaped conducting sheets (12) by means of stacking; the conducting sheets are insulated from one another; a gap (11) is formed on each of conducting sheets, the gaps being in staggered arrangement clockwise or anticlockwise in a stacking direction of the conducting sheets to form current entry ends (111) and current exit ends (112) for serially connecting a upper and lower conducting sheets, and the current exit end of an upper conducting sheet being conducted with the current entry end of a lower conducting sheet; and in operation, current flows through from the current entry end of an upper conducting sheet to the current exit end of the upper conducting sheet, then into the current entry end of a lower conducting sheet. The accuracy of the coil is guaranteed by a stacking and compacting process; the shape of the coil is random and small-radius even no-radium turning can be achieved; the coil has strong adaptation to iron cores having unconventional shapes; the coil is completely insulated by performing interlayer high temperature insulating treatment and subsequent encapsulation; and insulation failure at the corners of the traditional flat wires made by an enameled encapsulating process is solved.