Recycled concrete material which is a heterogeneous material and be used as a green building material has attracted more and more researchers with the shortage of resources and an increasing number of construction wastes.They have carried out series of experiments and some conclusions have been reached.An overview of study on recycled aggregate concrete has been given by Xiao et al (2012).However, because of the complexity of recycled coarse aggregates, conclusions made by different researchers are usually not very accordant, even opposite sometimes.To remove effects of experimental conditions, some numerical researches on meso-level was considered.For example, numerical simulation on stress-strain curve of recycled concrete was taken by Xiao et al (2009) with Lattice Model under uniaxial compression.A method on meso-mechanics analysis was proposed by Peng et al (2011) using FEM for recycled aggregate concrete based on random aggregate model.However, the Numerical researches on the damage mechanism for recycled concrete material have just begun.