COMPOSITE REPAIR METHOD AND COMPOSITE

PROBLEM TO BE SOLVED: To provide, in a case where a composite is damaged over the entire thickness direction thereof, a repair method based on access from one side thereof.SOLUTION: In a repair method of the present invention, a frustum-shaped range of a composite 10 is removed, and the composite 10 is adhered to a repair material 20 by performing a vacuum draw. The method of the present invention includes a removal step S2 of removing a damaged portion 11 from the front surface 10A side by punching through the thickness direction thereof in a state where a support wall 14 abutting inward along the diametrical direction from the peripheral edge of the vertex plane 32 of the frustum remains, a rear surface side sealing step S3 of sealing the rear surface 10B side by installing, on the support wall 14, a sealing plate 15 inserted, from the front surface 10A side, into a through-hole 12 formed as a result of removal, a repair material configuration step S5 of configuring, via an interposing adhesive AD, the repair material 20 on the composite 10 from which the frustum-shaped range thereof has been removed, and a vacuum draw step S6 of sealing and vacuum-drawing the front surface 10A side.