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One of third generation solar cell that can produce high efficiency with strong absorption power is perovskite. The good efficiency of perovskite depend on the stability structure and morphology homogenous. Recently, perovskite with CH3NH3PbI3 inorganic-organic compounds appear as solar cell that perform well even with small active regions. In this study, CH3NH3PbI3 perovskite was synthesized by two step deposition. The disadvantage of this method is that lead iodide (PbI2) material which is only dissolved in DMF solvents has not succeeded in forming perovskite CH3NH3PbI3 so that it has an impact on the performance of solar cells. The addition of DMSO as PbI2 solvent by controlling the composition of DMF/DMSO increased the homogenity of the morphology of perovskite solar cell and the efficiency obtained was better than using DMF solvents only. Characterization of samples using XRD to determine the perovskite crystal phase and structure, SEM to determine the morphology of the sample, and solar simulators to determine the efficiency of perovskite solar cells.