The invention discloses a novel solar cell, and a preparation method for the novel solar cell. The novel solar cell comprises at least one cell electricity generation layer and at least one second cell electricity generation layer; the first cell electricity generation layer and the second cell electricity generation layer are overlapped together layer by layer; the first cell electricity generation layer and the second cell electricity generation layer, which are in the corresponding position, are adjacent to each other and are connected in series; and a first cell is a silicon-based film solar cell, and a second cell is a copper indium gallium selenide solar cell. The copper indium gallium selenide solar cell has the quite high light absorption rate and photoelectric conversion efficiency, and can be used to improve the conversion efficiency of the novel solar cell.