In this paper, using a hybrid compression-absorption refrigeration system for providing cooling demand of air condition and fridges for meat, fish vegetable and dairy preservation, simultaneously on a ship is proposed. Cooling demands for air condition and fridges are in each ship. So, the use of proposed system can be considered in all ships and is not limited to a special one. Exhaust gases of auxiliary engine are applied as a heat source for absorption section. The results show that exhaust gases heat recovered is higher than the demand of generator on all ranges of engine loads. Unlike main engine, auxiliary engines are always on and don’t depend on the movement of ship. So, exhaust gases of auxiliary engine as a heat source is an appropriate and permanent heat source for generator of absorption section. Based on energy, exergy and environmental analysis, a comparative performance analysis of proposed system and conventional system (vapor compression refrigeration system) has been carried out. The results show that based on tropical condition, fuel consumption and total irreversibility of proposed system are respectively 91.6% and 26.6% less than conventional system. Using a hybrid compression-absoption refrigeration system in comparison to vapor compression refrigeration system causes 64834 $ annual saving due to reduction in CO2 emission penalty(cost).