Abstract: A new Self-centering Energy Dissipation Rebar Splice (SEDRS) is proposed and tested. The self-resetting force was provided by preloading disc springs, and the energy dissipation can be realized by the friction slip between the disc spring and the outer sleeve. SEDRS is used to connect the longitudinal rebars of reinforced concrete columns, then designed were a reinforced concrete column with one segment and a reinforced concrete column with two segments. The longitudinal rebars of the one-segment column were connected by SEDRS, the longitudinal rebars at the bottom and middle height of the two-segment column were both connected by SEDRS, and traditional reinforced concrete column was designed for comparison. The columns were tested under low cyclic loading, compared and analyzed were mechanic properties of the hysteresis curve, stiffness degradation, residual deformation, and energy dissipation. The results show that compared with traditional reinforced concrete columns, the cracks of reinforced concrete columns connected by SEDRS are concentrated at the joints area, and that the cracks are few and wide; that SEDRS can provide self-resetting ability well, and that the maximum residual displacement is only 20% of that of traditional reinforced concrete columns; that the maximum energy dissipation capacity of SEDRS connected RC columns is only 31.5% of that of traditional RC columns; and that the equivalent viscosity coefficient is between 0.05~0.10, which is far less than that of traditional reinforced concrete columns.