This doctoral thesis assessed the development of iron and steel technology in Central Anatolia from the Late Bronze through the Early Iron to the Middle Iron Age, ca. 1650-550 BC. By means of multidisciplinary analyses of new assemblage of iron and steel objects excavated at Kaman-Kalehöyük, at least two technological stages were confirmed in the Middle Iron Age after a period of discontinuity of iron technology around ca. 1200 BC. These technological stages were chronologically coincident with the cultural phase already confirmed by intensive ceramic investigations. Such synchronicity between iron and ceramic traditions indicated a dynamic socio-cultural change occurred in the end of ninth century BC. Through this project, iron and steel with reference to concrete archaeological and chronological contexts made it possible to discuss not only technological but also further archaeological issues before/after the collapse of the Hittite.