Abstract: In order to study the mechanical properties of recycled concrete filled T-shaped steel tubes under eccentric compression, the finite element software ABAQUS was used to numerically simulate 28 specimens of recycled concrete filled T-shaped steel tubes under eccentric compression, and the influence of the load-deformation curve, eccentricity, recycled aggregate replacement ratio, slenderness ratio and other parameters on the eccentric compression performance of the composite T-shaped specimens was analyzed. The results show that the change of steel tube thickness, slenderness ratio and eccentricity has a great influence on the eccentric performance of the specimen, and the increase or decrease of recycled aggregate replacement rate has little influence on the initial stiffness, peak deflection, residual bearing capacity and eccentric bearing capacity of the specimen, while the change of loading angle has no increasing or decreasing law on the biased bearing capacity of specimen, Among them, the specimen with loading angle of 90 has better biasing performance.