Abstract: Sb2S3 is emerged as potential candidate for the contemporary thin film solar cells. The optical properties such as band gap of 1.65 eV approximately, high absorption coefficient > 104 cm-1 etc. satisfy the quality an ideal absorber layer. In the current article, physical properties of Sb2S3 have been reviewed. To understand the architecture of Sb2S3 thin film solar cell, an attempt is made to simulate the device using one dimension solar capacitance simulator (1D-SCAPS) program. The simulation is carried out on the solar cell Glass/Mo/Sb2S3/CdS/i-ZnO/Al:ZnO. The efficiency calculated by the simulation is more than 11%.