In order to understand fully the failure mode of steel-recycled concrete beam, four steel-recycled concrete beams were tested on their bending performance. Through the test, the mechanical characteristics and deformation mode of steel-recycled concrete beams from the starting loading until to damage were completely recognized. The effect of different coarse aggregate substitution rate and reinforced stirrup on its mechanical features were also analyzed. The results show that different coarse aggregate substitution rate have little effect on the ultimate strength of steel-recycled concrete beam. The stirrup ratio have certain influence on the crack distance and development of beam. The?horizontal?section?assumption is feasible to the Steel-recycled concrete beam. The research conclusions can be a help to relevant study and engineering application.