The natural coarse aggregate was replaced with recycled coarse aggregate to prepare recycled concrete. The dynamic mechanical properties of the recycled concrete under uniaxial compression were tested. The effects of strain rate and replacement rate of recycled aggregate on the stress-strain curve characteristics， elastic modulus， compressive strength and peak strain were studied. The mesoscopic damage evolution of recycled concrete was analyzed by the statistical damage model. The results show that the whole stress-strain curves of recycled concrete under uniaxial compression have similar characteristics under different strain rates. With the increase of strain rate， the compressive strength and elastic modulus tend to increase， while the peak strain decreases gradually. When the substitution rate is 100%， the recycled concrete shows more obvious strain rate sensitivity. With the increase of strain rate， the characteristic parameters that characterize the heterogeneous evolution process of mesoscopic damage change with obvious regularity， which is in good agreement with the strain rate effect mechanism of microstructure and the macroscopic nonlinear constitutive behavior.