The invention provides an LFT-D mold pressing molding method of a carbon-fiber-reinforced PEEK composite profile. The LFT-D mold pressing molding method comprises the steps that PEEK is added into a twin-screw extruder to be fused and plastified, and meanwhile, long carbon fibers are added into a yarn inlet in an opening in the middle of the twin-screw extruder through a yarn guiding bracket, so that the long carbon fibers and the PEEK are fully mixed under the shear effect of screws; a profile blank material is extruded through a mold; cutting is conducted as needed; and the profile blank material is put into a mold pressing mold and pressed to be formed. By means of the LFT-D mold pressing molding method, the steps of heat-preservation conveying and mechanical arm gripping of the blank material are omitted, and operation is convenient; compared with a carbon-fiber-reinforced PEEK composite produced through mold pressing molding, injection molding and extrusion molding, the strength is remarkably improved, and the modulus is remarkably increased; and in addition, the interior of the material does not have defects such as pores and shrinkage porosity.