A solar cell module is described, including a series of solar cells each including a bottom electrode, a photoelectric conversion layer, an insulating pattern, a top electrode layer and a passivation layer. The conversion layer is on the bottom electrode and also on the substrate at a first side of the bottom electrode. The insulating pattern is on the bottom electrode, covering an edge portion of the conversion layer near a second side of the bottom electrode. The top electrode layer is on the conversion layer and adjacent to the insulating pattern. The passivation layer is on the top electrode layer and adjacent to the insulating pattern, wherein the top of the passivation layer on the top electrode layer is lower than the top of the insulating pattern. The bottom electrode of a solar cell is electrically connected with the top electrode layer of an adjacent solar cell.