PROBLEM TO BE SOLVED: To provide means that regenerates a coral reef simply and effectively by effectively utilizing coral fragments generated by an extreme wave such as a typhoon wave and construction in a coral reef area, etc.SOLUTION: A method for regenerating a coral reef is provided by covering a covering member A formed substantially in a grid or net-like pattern on a coral fragment collection group R formed by a large number of coral fragments 3, and holding such a condition that coral fragments-to-fragments 3 or the coral fragments 3 are brought into contact with death coral gravels for a long period of time, and thereby regenerating the coral reef.
