For the purpose to explore the curing age and water-binder ratio(W/B) influence of coral concrete cube compressive strength(ftu).In this paper, 7 groups different W/B of all coral concrete were designed, and the coral concrete and ordinary concrete relationship between the compressive strength was explored.The results showed that: As curing age prolongation, coral concrete fcu increased significantly at the beginning of the curing.When the curing time extended to 7d further, the growth speed of fcu slowed down gradually.At last it tended to stabilization gradually.Coral concrete 3d fcu and 7d fcu can reach the 28d fcu respectively of 60% and 70%.At the beginning of maintenance, compared with ordinary concrete, fcu grew faster.But at the last of maintenance,due to the important influence of concrete strength by aggregate strength, compared with ordinary concrete, fcu grew slowly at 28d.W/B influence on early strength of coral concrete is bigger than late strength of coral concrete.When W/B increased, coral concrete fcu decreased, there were linear relationship between fcu and W/B.