PURPOSE: To manufacture a small craft in small number of forming manhours in a short time by supplying resin composition, glass fiber and carbon fiber to a simplified negative mold made of polyester decorative panel, and hardening the resin composition by electrifying the carbon fiber after the resin composition is impregnated in the glass fiber and the carbon fiber.

CONSTITUTION: The mold releasing agent is coated to a simplified negative mold 1 made of polyester decorative panel. As the mold releasing agent, the wax type, the film type whose main raw material is water-soluble polymer, etc., is used. After the get-coat resin 2 is coated and hardened, the resin composition 3 is impregnated in the glass fiber 4A, 4B and the carbon fiber 5 by the hand lay-up method by using the resin composition 3, the glass fiber 4A, 4B and the carbon fiber 5, electrification is achieved by holding supplying clips 6 to each end of the projecting carbon fiber 5. This electrification allows the carbon fiber 5 to be heated, and the resin composition to be heated thereby, leading to rapid hardening. After hardening, the mold releasing is achieved to obtain a small craft made of FRP.