Abstract: The repair mechanism of the self-repairing coating with foreign aid is introduced, and the optimization measures are proposed to solve the problem that the repair of coating defects is not ideal. The repair mechanism, existing problems and optimization measures of the intrinsic self-repairing coating are summarized. The application prospect and necessary application research of smart anti-corrosion coating in domestic nuclear power are analyzed. The future development direction of smart anti-corrosion coating is prospected.