A solar cell and a method of manufacture is disclosed comprising a three-dimensional carbon nanotube networks. Solar cell comprising a three-dimensional carbon nanotube network according to the present invention, 3-D formed of the structures intertwined with each other so that the connection between the filler of a substrate including a plurality of filler of (pillars) CNT network to the photoelectric conversion layer as used to not need extra configurations for photoelectric conversion, bring a large surface area is advantageous in light absorption, a carbon nanotube having a variety of diameters consists of a three-dimensional network form the photoelectric conversion efficiency through the light absorption of the broad wavelength band It can be maximized. In addition, the method of manufacturing a solar cell including a three-dimensional carbon nanotube network according to the present invention, the positive electrode and covers the cathode front, forming a dielectric film so as to completely surround the three-dimensional carbon nanotube network, and to sandwich a dielectric film wherein by forming a first electrode and a second electrode on one side of the positive electrode and the negative electrode prevents the leakage current, and a split gate (split gate) employing an electrode in the form of structural aspect to form a pn junction induced by electrical It can be produced battery.