One of the main challenges of the modern world is finding new sources of energy. Nowadays, thermoelectric materials which directly convert heat into electricity, are considered as possible novel energy sources that can also be effective in reducing global warming. The closest promising thermoelectric application seems to happen in the automobile industry. General Motors has stated that only 10 percent reduction of fuel consumption in this company’s automobiles, will save 100 million gallons of fuel per year for America. The main deficiency of the conventioned thermoelectric materials is their low efficiency which perivents them to compete with the conventional heating and cooling systems. Hence scientists are using nanotechnology to look for new thermoelectric materials which have high power efficiency. Superlattices are two dimensional nano systems which seem to be promising for improving figure of merit of thermoelectric materials. Hence, in this research, we study thermoelectric properties of (Age 2 ) n (AgSbTe 2 ) n (n=1,2) thin film superlattices. Ternary chalcogenides AgSbQ 2 (Q=S, Se, Te) are thermoelectric materials with high seebeck effect and electrical conductivity and low thermal conductivity and consequantly high thermoelectric performance. In this project, structural, electronic and traort properties of Age 2 , AgSbTe 2 and (Age 2 ) n (AgSbTe 2 ) n thin film superlattices have been calculated in the frame work within the density functional theory and pseudopotential formalism. Within the GGA approximation, Age 2 and AgSbTe 2 are predicted to be semimetals whereas these materials are narrow band gap semiconductors. To solve the gap problem, we used GGA+U and spin-orbit interaction. Spin-orbit interaction could not open any gap in the systems while GGA+U could estimate the band gap of Age 2 . In the next step, we calculated traort properties of these alloys. Then, after constructing the superlattices (n=1,2), we calculated traort properties by using the scissor corrected and the GGA+U electronic structures of the systems. Our results show (Age 2 ) 1 (AgSbTe 2 ) 1 superlattice exhibits improved thermoelectric properties compared with the alloys and (Age 2 ) 2 (AgSbTe 2 ) 2 superlattice and a high figure of merit is speculated for this system.