Abstarct: Compression and absorption chillers are the most usable chillers in the market. However, due to high energy consumption and repair and maintenance costs, it is recommended to use surface-absorption chillers. For these reasons, the technical and economic adsorption chiller with the comparison and absorption chillers is of great importance.This study has investigated two types of the most common chillers (absorption and adsorption) including absorption chiller single effect lithium bromide-water and adsorption chiller two-bed silica gel-water in terms of thermodynamics and economics. The technical analysis was performed from the perspective of the first law of thermodynamics and EES software was used for the simulation. In the second part of the research, the economic analysis of chillers in the same capacity is discussed, The total initial investment cost, operating costs and life cycle cost over the useful life of chillers. Also, the written code can be displayed, the effect of different input parameters on the coefficient of performance and costs. The results showed that the coefficient of performance absorption and adsorption chillers are 0.7541 and 0.5827 respectivelyt, in economic terms, the total initial investment cost of the absorption and adsorption chillers are $ 8915 and 9799 respectively, while the annual operating costs of the chillers are $ 690and 395 per year and the cost life cycle $ 14603-13051 respectively. On the other hand, in the absorption system, with increasing the temperature of the generator and absorber, the coefficient of performance and costs increase and decrease, respectively, and in the adsorption system, with increasing the temperature of hot inlet water, the coefficient of performance and costs increase.