<;P>;PROBLEM TO BE SOLVED: To provide a structure for rearing coral, promoting growth of coral. <;P>;SOLUTION: The structure for rearing coral is obtained by placing concrete 2 on the outside of a metallic frame body 1SP and attaching coral to be cultured to the outside of a part sunk in the sea by a coral-supporting structure 10. The coral-supporting structure 10 has a cathode C functionalizing as a fixing tool for fixing the coral and an anode A arranged in sea water and electrically connected to the cathode C by a conductor L and having a natural potential which is poorer than that of the cathode C. The cathode C to which coral is fixed is attached through a resin screw 14 to a coral-fixing tool-attaching body 11 embedded in the concrete 2. Conduction of the cathode C to the frame body 1SP is suppressed between the cathode C and the frame body 1SP by the resin screw 14. <;P>;COPYRIGHT: (C)2008,JPO&INPIT