In this paper the issues how to enhance the rupture strength of recycled coarse ceramic aggregate concrete were discussed.24 specimens of 40mm × 40mm × 160mm casted with soaked coarse ceramic aggregates and cement motar were used to examine experimentally the effect of silane coupling agent solution concentration and immersion time on the rupture strength of interfacial transition zone (ITZ) between recycled coarse ceramic aggregate and cement motar.The experiment results showed that the bonding performance for the ITZ in the recycled coarse ceramic aggregate concrete could be greatly improved by immersing the coarse ceramic aggregates in some diluted adhesion agent and was confirmed by the stereomicroscope analysis;the rupture strength increased with increasing the immersion time, and first increased but then decreased with the increase of silane coupling agent solution concentration;the compressive strength after 28-day curing increased by 38.4% by using 15% replacement of coarse rubble aggregates by the present soaked coarse ceramic aggregates;even for 100% replacement of coarse rubble aggregates by the present ceramic aggregates, the compressive strength of the recycled ceramic aggregate concrete is still higher than that of natural rubble aggregate concrete;when the replacement of coarse aggregates reaches 60%, elasticity modulus of the present recycled concrete is still improved by 3.2% compared to that of natural rubble aggregate concrete.