The invention discloses a fiber product which is characterized by comprising fiber bodies and connecting components arranged on the fiber bodies, wherein fiber plates, blanket products, or fiber plate-blanket product combinations are served as the fiber bodies; hook combinations or hook-loop combinations are served as the connecting components and arranged on one surface or both surfaces of the fiber plates or blanket products; the fiber bodies with the connecting components are immersed in a liquid matrix before or after being overlapped, so as to form three-dimensional fiber prepregs; and when a plurality of three-dimensional fiber prepregs are overlapped, the connecting components on the adjacent three-dimensional fiber prepregs are connected and firmly bound to form a three-dimensional composite. The invention further provides a manufacturing method of the fiber product. By adoption of the fiber product and the manufacturing method, the purpose of enhancing the mechanical strength, interlaminar strength, fatigue strength and impact strength of the three-dimensional composite can be fulfilled.