This study presents solar chimney power plantintegrated with seawater desalination system. A simplemathematical model is based on the conservation of massand energy. The results show that the integrated system ofsolar chimney power plant and solar still can achievesimultaneously. The analysis is performed for bothsummer and winter at latitude 30oN. It’s noted that thewater layer thickness is of a significant effect on the freshwater productivity while the dimensions of solar chimneyand the solar collector are of a minor effect. Theproductivity of fresh water and output power for summerare the highest. The present work is compared withexperimental data of the other work and showed a goodagreement.