Abstract: Based on the uniaxial plastic damage constitutive of concrete and the elastic-plastic mixed strengthening constitutive of steel, the finite element model of reinforced concrete column under pseudo-static load is established by using ABAQUS software. The constraint relationship between concrete and longitudinal reinforcement and stirrup, reasonable boundary conditions and loading system are fully considered in the modeling. Comparing the results of load displacement hysteretic curve, skeleton curve and stiffness degradation displacement curve in finite element with the test results, they are in good agreement. Furthermove, the stress-strain characteristics and plastic energy consumption distribution mechanism of column concrete and reinforcement are analyzed. When the axial compression ratio increases, the peak compressive strain and total plastic energy consumption of each component increase significantly, and the proportion of plastic energy consumption of concrete also increases, which make the column easier to be crushed. Moreover, due to the increase of stirrup spacing, the ductility of the specimen, the loading time, and the total plastic energy consumption decreases obviously. Lastly, when the yield strength of longitudinal reinforcement increases, the peak value of compressive stress of concrete and longitudinal reinforcement increases, and the change of compressive strain is not obvious, which has little effect on the compressive strain and compressive stress of stirrup.