Lead-free halide perovskites have pulled in intrigued within the photovoltaic industry out of concern for the poisonous nature of lead. Antimony-based perovskite, methylammonium antimony trichloride (MASbCl3), is one such material proposed to substitute the lead-based perovskites, because it encompasses a tall assimilation coefficient, about coordinate bandgap, and moo e..ective mass. A clear clarification of the solidness of this material will result in an effective utilize in photovoltaic. Here we have studied degradation by the influence of light, and the associated temperature. We saw degradation with the bandgap parameters using UV-Vis Spectrophotometers. The resulting bandgap is 2.17 eV – 2.94 eV. Polymer overstable at the addition of 1 ml of solvent compared to 0.8 ml and 0.5 ml. Dimmer shape corrupted in 40 days in spite of the fact that generally more steady than the built up organic-inorganic halide perovskite. We found that light and temperature matter. Also, the reactivity (SbCl3) in oxygen increases to accelerate the degradation process. And after, that the utilize of this material for application in a surrounding environment requires legitimate epitome or fundamental activity.