Office buildings without regarding to their sub functions are some kinds of assets that because of being related to the governments and states and their important role in governing people affairs, had always been under different kinds of threats from airborne-missile attacks to terrorist near-by blast. Especially by increasing different kinds of attacks, including terrorist and non-terrorist attacks against political-bureaucratic buildings of our country, this issue has exposed more than ever. Hence, implementation of passive defense efforts in design and building steps of these buildings, is an essential issue. In this article, with considering of blast wave as the base threat, efforts have been done to identify and prioritize main architectural criteria in designing office buildings by using experts' opinion and Analytical Hierarchy Process after gathering data with library method and expert interview and filling in the questionnaire by 28 experts, records analyzing were done by AHP method. At last, after the assessments in research by Expert Choice 11 Software, building envelope, interior design and protected space, respectively were chosen as the most important criteria of architectural design of office building with passive defense point of view. So, efforts have been done in this article to write a comprehensive analyze for the most important indicators