Abstract: An ecological restoration block installed to a predetermined height along rivers or river banks. The ecological restoration block includes a body, having a first cell in which earth and sand are stored, and second and third cells for storing water, provided on respective sides of the first cell, with partitioning walls therebetween, a first migration channel, formed diagonally on a front part of the body to make movement of animals possible, a cover provided on an upper part of the body to open an upper side of the first cell, and a flow pipe, which crosses the first cell and connects internal space of the second and third cells. The ecological restoration block of this invention can effectively preserve wild animals and plants by providing protective habitat at the front part of the body and by allowing the animals to move freely through the first and fourth migration channels.