BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a drive plate assembly using a carbon fiber composite material and more particularly to a method of manufacturing a drive plate assembly by replacing a part of a drive plate assembly constituting a power train of a vehicle with a carbon fiber composite material of light weight and high strength, And more particularly, to a method of manufacturing a drive plate assembly for an automobile, which is capable of improving the fuel economy through weight reduction and coping with forcible fuel economy regulation of an automobile. According to the present invention, there is provided a method of manufacturing a carbon fiber composite material, comprising: cutting a plurality of carbon fiber composite materials using a cutting press mold to correspond to a shape of a drive plate; Stacking the plurality of cut carbon fiber composite materials by arranging at least one or more carbon fiber composite materials at a predetermined angular interval; Molding the plurality of laminated carbon fiber composite materials by hot press molding with a hot press die to form a semi-finished drive plate plate; Cutting and shaping the formed semi-finished product to polish the outer shape; A step of drilling a bolt hole for coupling with the engine to the semi-finished product having the finished appearance to complete the drive plate; And completing the manufacture of the drive plate assembly by fastening the completed drive plate to the ring gear. The present invention also provides a method of manufacturing a drive plate assembly using the carbon fiber composite material.
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