Terminal body, connection terminal and sheet material for manufacturing terminal body

The present application provides a terminal body, a connection terminal and a sheet material for manufacturing a terminal body. The terminal body has an insertion portion including a first insertion plate and a second insertion plate. A gap is formed between the first insertion plate and the second insertion plate, which are commonly enclosed to form an insertion slot configured for a mating terminal to be inserted therein. The terminal body has a mounting structure, respectively arranged at the first insertion plate and the second insertion plate, and configured for fixing a limiting member; and a wiring portion, configured for connecting a core of a wire, and comprising a first wiring plate and a second wiring plate. At least a part of the first wiring plate and at least a part of the second wiring plate are stacked and in contact with each other. The core of the wire can be electrically connected to both the first wiring plate and the second wiring plate, which improves the conductivity and current-carrying performance of the wiring portion. The stacking arrangement of the first wiring plate and the second wiring plate not only reduces the space occupied by the wiring portion, and also improves the structural stability of the wiring portion.