The present invention provides a thin film type solar cell and a method of manufacturing the same, the thin film type solar cell including: a substrate; a first transparent electrode provided on the substrate, a first separation part being formed in the first transparent electrode; a semiconductor layer formed on the first separation part and the first transparent electrode; a contact part formed to pass through the first transparent electrode and the semiconductor layer; a second transparent electrode formed in the contact part and on the semiconductor layer; and a second separation part formed to pass the semiconductor layer and the second transparent electrode, wherein a size of a grain of the contact part is smaller than a size of a grain of the first transparent electrode.