The present invention relates to a carbon nanoplate manufactured by using a silk protein and a method for manufacturing the same, and more specifically, to the carbon nanoplate carbonizing a film manufactured by stirring an alkaline-based activating agent and a recycled silk fibroin aqueous solution dissolving a recycled silk fibroin by removing a sericin from a silk protein, to be used as a super capacitor electrode improving a low energy density of the super capacitor; and the method for manufacturing the carbon nanoplate manufactured by using a silk protein. According to the present invention, the carbon nanoplate has a large surface area of H-CMNs due to an activation of the alkaline-based activating agent during a carbonizing process of the film made by stirring the recycled silk fibroin and the alkaline-based activating agent; and has a structural advantage of a micropore which is easily attached to an electrolyte, and a pore-size distribution which is advantageous in forming a double-layer. In addition, the excellent electrical characteristics, a pseudocapacitive reaction by a plurality of heteroatoms combined with a carbon material, and a characteristic capacitance improvement by an improved polarity of the carbon nanoplate maintain high power density and cycle-stability of the super capacitor, and have a useful effect of improving the energy density at the same time.