The invention provides a continuous fiber reinforced composite propeller layer lay-up design and a preparation method. According to the method, continuous fiber prepreg sheets are adopted for coatinga metal insert; through the mold pressing process, the one-step forming of a composite propeller is achieved; a preformed mold is prepared for the preforming process of composite blades, thereby guaranteeing the continuity of the connection between the blades and a propeller hub, shortening the manufacturing cycle of the composite propeller, reducing the manufacturing cost of the composite propeller, improving the product quality, and meeting the actual usage requirements on the light weight of a propeller blade material and the noise reduction; according to the propeller prepared through themethod, the continuous fiber integral blades are adopted and integrally connected with the propeller hub part, thereby avoiding the occurrence of a secondary interface; and accordingly, the machinerystability and reliability can be effectively improved.