Pottery is one of the cultural evidences that its developments in different times are important archaeological indicators. Pottery can be viewed from different aspects. Appearance features such as form, shape, color, decoration and pottery production technology have changed over time. In this research, with the study of the technology of the pottery obtained from the excavation of the Sagzabad Tepe in Qazvin plain, which is one of the important areas of excavation in the central plateau of Iran, the period of the transition from the Bronze Age to the Iron Age has been investigated. In this study, with focus on the pottery in this region, new information on the production of pottery has been obtained. To determine the chemical composition of the potteries, a series of excavated objects consisting of a selection of potteries from each period were analyzed using the ICP-OES method and a statistical comparison of the data obtained from the measurement of 40 elements was performed consisting of the major, minor and trace ones. The correlation coefficient of the analyzed samples also was studied. Comparing the results obtained from the analysis of potteries according to the hypothesis suggests that all potteries are probably local productions and it is possible that they have been produced in the same region (clay sources) in different periods.is possible that they have been produced in the same region (clay sources) in different periods.