The effect of different reinforcement quantities and strengthening history on the bending performance of concrete beam was analyzed by pasting CFRP in the tension zone and anglesteel in the compressive zone of 7 reinforced concrete beams. The stress-strain curves and the load deflection curves of the steel and the CFRP were obtained. The results show that the ultimate bearing capacity of test beams reinforced by CFRP and angle steel increases significantly, and external reinforcement material can effectively delay or inhibit the development of cracks. For the loading and unloading reinforcement of reinforced concrete beams, there are varying degrees of strain hysteresis in reinforcement materials.And the utilization rate of the CFRP and the angle steel on the unloading reinforced beams is better than that on the no-unloading reinforcement beam.Calculation results of ultimate bearing capacity obtained by experiment agree well with the test values.