The invention discloses a basalt fiber cay ecological restoration multi-dimensional reef which comprises a polygonal prismatic platform frame or a circular platform frame, a central supporting component and a polygonal connector, wherein the polygonal prismatic platform frame comprises a plurality of equilateral polygonal components with side length being gradually increased, an outer inclined stay bar and an inner inclined stay bar from top to bottom; the polygonal connector is arranged on the inner side of the inner inclined stay bar and is fixedly connected with the inner inclined stay bar; and the central supporting component comprises a plurality of central connectors from top to bottom, horizontal supporting rods in uniform outward radial connection with the central connectors and central vertical columns connected with the central connectors from top to bottom. The basalt fiber cay ecological restoration multi-dimensional reef has the advantages of environment friendliness, high strength, long service life, corrosion resistance, plant modular production, short construction cycle, strong storm resistance, construction and mounting under various complex cay geological environments, benefit in coral apposition growth and capability of effectively repairing marine ecological environments.