This study covers the exergy analysis of the condensate stabilization unit of South Pars Gas Refinery. In this regard, the simulation of unit is carried out using HYSYS software to achieve all required data for exergy calculations. The final product is suitable for summer, as the Reid Vapor Pressure is achieved about 7 Psia. Afterwards, the exergy analysis is done using source-sink or stream-wise methods. Having analyzed all unit operations, it is shown that condensate tower and the associated heat exchanger have the most scope for energy improvement.