The utility model relates to a roll up and fold formula metallic glass transformer core and contain this transformer unshakable in one's determination. The utility model discloses a roll up and fold formula metallic glass transformer core, including unit unshakable in one's determination, the mid portion of unit unshakable in one's determination is metallic glass, and the design material is supported to the most inboard being provided with with the outside, and unit unshakable in one's determination is divided into first iron core and the lower half iron core that can dock each other. Its technological effect is: the utility model discloses an iron core need not the iron core that opens and shuts when the suit winding, can not produce the metallic glass piece. Amorphous alloy iron core post filling coefficient is high, and material utilization rate is high, and anti short circuit can the reinforce. First iron core and lower half structure unshakable in one's determination has reduced manufacturing cost, has improved production efficiency. Ware body convenient assembling, simple structure, easy to operate, and practice thrift the place. The range of application is wide, and the transformer of different capacity, different specifications all can use.