Abstract: Based on lower limit principle of plastic theory, the calculation methods of normal section bearing capacity of T-shaped steel reinforced concrete column is proposed. Normal section bearing capacity can be divided into concrete part, reinforcement part and section steel part, while the normal section bearing capacity equations of each part are analyzed. N-Minterrelated curves of T-shaped steel reinforced concrete column are established by using the strength superposition methods, and the corresponding formulas are given. Low-cycle reversed loading experiment of five T-shaped steel reinforced concrete columns is performed, and flexural failure occurs in four specimens. The testing parameters included shear span ratio, axial compression ratio, stirrup ratio and presence of cross tie. Mechanical process, failure mode, hysteretic characteristics, skeleton curves, ductility and energy absorption capacity are taken into comparison. Comparison was made between the calculation results and experimental data, which indicate that the proposed calculation method is simple and can provide a reference for the actual engineering design.