The invention discloses a novel sewing method of a multi-curved surface fiber cloth prefabricated part. The sewing method comprises the following steps that one, fiber cloth is cut; two, the fiber cloth is laid; three, unit module sewing is carried out and a unit module is manufactured; four, superposition sewing is carried out and a semifinished multi-curved surface fiber cloth prefabricated part is obtained; and five, puncturing sewing is carried out, and the multi-curved surface fiber cloth prefabricated part is obtained. The sewing method is low in production cost, high in efficiency and easy to operate and adapts to industrialization, and the prefabricated part manufactured by sewing is high in mechanical property and interlamination strength.