Influence of surface mortar strength and adhesive rate around coarse aggregate on recycled aggregate concrete(RAC) were investigated. Concrete of different strength were prepared with recycled aggregate of different surface mortar strength and adhesive rate to investigate their properties. It has been shown that, for low strength recycled aggregate concrete with higher strength ordinary concrete, the strength of recycled aggregate concrete and ordinary concrete are nearly the same, and the effect of surface mortar strength and adhesive rate around coarse aggregate on recycled aggregate concrete is low, while the carbonization depth of recycled aggregate concrete is higher than that of ordinary concrete; on the other hand, for recycled aggregate concrete prepared by low strength ordinary concrete, there are great differences between recycled aggregate concrete and ordinary concrete, the effect of surface mortar strength and adhesive rate around coarse aggregate on recycled aggregate concrete is significant and carbonization depth is increasing.