The invention discloses a fabricated structure connection piece. The fabricated structure connection piece comprises a prefabricated steel member, wherein the prefabricated steel member comprises at least two prefabricated special-shaped components which are sequentially arranged in the left-right direction, multiple special-shaped nodes are correspondingly arranged on end portions, close to eachother, of each two adjacent special-shaped components, and each pair of the special-shaped nodes are connected with a matched prefabricated steel sheet through a fastening device. In assembly, the fabricated structure connection piece can be used in node connection for connecting fabricated members such as pillars and pillars, beams and beams, the beams and the pillars and walls and walls, and iswide in application range. By designing the I-shaped structure and the special-shaped nodes, the assembly type structure connection piece guarantees assembly accuracy and flatness on the premise of facilitating rapid fabricating construction for constructors, and prevents secondary calibration for the constructors, and the special-shaped nodes are high in shock resistance and reliable in structure, and guarantee construction quality on the premise of improving efficiency. The fabricated structure connection piece avoids the problems that an existing fabricated structure connection piece adoptsa grout sleeve connection mode for connection, and therefore construction difficulty is large and huge potential safety hazard exists.