The invention relates to an ecological concrete embankment and a construction method thereof.According to the ecological concrete embankment, due to the fact that ecological green belts are arranged on the top of the embankment, ecological tanks are formed in the upstream face, flood drainage reverse valve tubes are pre-buried in an embankment body which communicates a river channel ecosystem with a river bank land ecosystem, the embankment, a river bank and a river channel form an ecological circulating system, and the purpose of ecological restoration is achieved; by means of automatic circulation, the later maintenance cost is reduced, and formation and growth of original ecological biotic communities can be promoted; by means of combination of plants and concrete materials, a certain structural strength is achieved, and instability and erosion of the slope surface and the slope toe can be relieved; meanwhile, symbiosis and reproduction of multiple types of organisms can be achieved, the self-repairing capacity and purifying function are achieved, and conditions are created for growth of aquatic plants, breeding of aquatic animals and habitat reproduction activities of amphibians.