Insulator folding connection structure and all-fiber current transformer

The invention relates to the technical field of light modulation devices, in particular to an insulator folding connection structure and an all-fiber current transformer. An insulator folding connecting structure comprises a first insulator, a second insulator, a left connecting side plate and a right connecting side plate, adjacent ends of the two insulators are respectively provided with a connecting seat, two ends of the left connecting side plate and the right connecting side plate are respectively detachably connected with the connecting seats through end connecting structures, and each end connecting structure comprises a side plate connecting hole, a seat body connecting hole and a connecting bolt. The number of the connecting bolts is multiple, one of the connecting bolts is a rotary connecting bolt and serves as a rotating shaft for relative rotation of the connecting base and the connecting side plate when the connecting bolt is loosened, and the connecting base is provided with two connecting posit