Firstly, the comparison between the experimental data collected from the bending test carried out by domestic and overseas researchers and the calculated results by using formula of the Code for design of concrete structures(GB 50010-2010)(abbreviated to the CDCS), the applicability of the Code for the recycled concrete beams were validated statistically. Then, from the aspect of constitutive law of recycled concrete, the applicability of the Code for the recycled concrete beams bending capacity is examined.