Abstract: With full-scale models, this paper investigated the seismic behavior of pre-cast concrete beam-column subassemblies with cast-in-situ monolithic joints under low-cycle reversed loading. The failure pattern, hysteretic characteristic, skeleton curve, ductility and energy dissipation, were analyzed. The result indicated that beam-column joints with longitudinal bars welded at the bottom of beams can meet the requirements of ‘strong column weak beam, stronger joint’.