The invention discloses a composite laminated plate manufacturing mold. Through the composite laminated plate manufacturing mold, the thickness of laminated plates can be adjusted continuously and accurately. A lower mold surface is provided with stepped grooves. The first stepped groove is internally provided with the lower mold surface. The second stepped groove is provided with an upper top plate. The lower mold surface is provided with ejector pin holes allowing ejector pins to move vertically. The bottom surface of a lower mold is provided with locking devices used for locking push rods.The push rods are provided with graduations. The thickness of a mold cavity can be visually observed through the graduations. The upper and low mold surfaces are provided with sealing grooves for containing seal rings to guarantee the airtightness of the mold cavity. Heating pipes are arranged in an upper mold and the lower mold and can increase the temperature of the mold, so that the fluidity ofresin in the mold cavity is improved. Different thicknesses of laminated plates can be set according to different fiber cloth thicknesses. The fiber volume fraction of products can be controlled by calculating and controlling the content of resin in the laminated plates. Accordingly, the product quality is improved.