be added to the mixture powder in accordance with the present invention the problem of degradation of physical properties owing to the metal resin or dispersant added for solidification of the carbon nanomaterial powder can be solved in addition dust problem owing to the low apparent density of the carbon nanomaterial and health problem occurring therefrom can be solved also since the carbon nanomaterial powder is used in pellet form layer separation problem occurring when the carbon nanomaterial in powder form is supplied together with the polymer pellet to an extruder owing to the large density difference of the carbon nanomaterial powder and the polymer pellet can be avoided especially if the carbon nanomaterial polymer composite is prepared according to the present invention the additive acts directly on the carbon nanomaterial powder since the additive is adjacent to the carbon nanomaterial powder thus a carbon nanomaterial polymer composite having better physical properties can be prepared with the same amount of the additive as compared to when the carbon nanomaterial and the additive are used in powder form accordingly the carbon nanomaterial polymer composite prepared according to the present invention is free from the powder dust problem unlike when the carbon nanomaterial in powder form is mixed with the polymer material as in the existing art and the health problem occurring therefrom furthermore a carbon nanomaterial polymer composite having superior physical properties can be obtained with the same amount of the additive the present invention will be described in more detail through examples the following.