The invention discloses a method for manufacturing a PEEK bone fixation part containing carbon fiber filaments through heat flow die casting. The method is characterized by successively comprising: animplantation-level PEEK material of a powder shape, a film shape or a fabric shape is heated and melted as a substrate and then mixed with the carbon fiber filaments for curing, a rod material, a sheet material or a tubular precast sectional material is formed to manufacture a precast sectional material which is then cut according to a needed length, the cut precast sectional material is added toa heated lead-in tube, the precast sectional material is softened and ejected to a heated die, the die is full of the material, gradual cooling and complete curing care carried out after a continuoushigh-pressure treatment, die release is carried out, de-burring is carried out, and a finished product is obtained after the product passes an inspection. The heat flow die casting technology is usedfor manufacturing the carbon fiber filaments with a high carbon fiber content to reinforce a PEEK material bone implant. The novel bone implant integrates good mechanical properties, biocompatibilityperformance and imaging features and can be widely applied to the medical field. Through the heat flow die casting technology, multiple novel bone implants can be manufactured.