A connection method of the beam-column joint of a new type of full bolt is proposed in this paper, which can be used to conveniently connect the square steel column with the H-shaped steel beam by full bolt. Pseudo-static test is carried out on two beam and column joints to study their bearing capacity, hysteresis performance, skeleton curve, ductility performance and energy dissipation capacity, and to study the influence of the column wall thickness of the joint area on its seismic performance. The study shows that the column wall thickness in the joint area has a significant impact on the failure form and the seismic performance. As the thickness of the column wall increases, the bearing capacity, ductility, stiffness and energy dissipation performance of the joint increase significantly. As for the connection method of the new joint, when the thickness of the column wall is different, its failure form is different, but its seismic performance, such as ductility and energy dissipation capacity, is better.