Cappadocia which was located in Asia Minor was the main battlefield of Greeks and Achaemenids, particularly during the last years of Achaemenid rule and could change the power balance between the two states by supporting each one. During the Achaemenid era, some of Achaemenid family had been appointed as the rulers of Cappadocia and after the fall of the Achaemenids, this Satrapy became a base for the commanders who wanted to defend against Alexander and his successors. Since parts of Kingdom route passed over Cappadocia and this province was adjacent to the sea, this position gave more importance to Cappadocia. Yet, no single and comprehensive research has been conducted on the role of the Cappadocia in maintenance of the Achaemenid culture and tradition in Asia Minor. Using historical research method, historical evidences and archeological results, this paper attempts to investigate the geographical limits and position of the Cappadocia in Achaemenid era and its role in the maintenance of the culture and tradition of the Achaemenids in Asia Minor after the fall of Achaemenid kingdom.