Attempts to prepare a national spatial plan over the previous 35 years have always met problems and challenges. Experience of spatial planning in Iran (often at national level) has encountered events and decision taking through concepts, theories, techniques, producers, processes, organizations and logic that have sometimes led to improvement in this work and at other times deviated it from its correct path. This research aims to analyse and evaluate spatial planning through a process of planning point of view and, in this way, focuses on concepts, organizations and current rules in Iran’s planning system to understand some of present challenges and make recommendation for confronting them. According to the research outcomes, major reasons for the failure of Iran’s spatial plans are found in the conceptual, organizational and logical contexts. It is therefore not expected that spatial planning recommendations would be operational, because of incorrect presumptions and poor recognition that surround the spatial planning issue as well as some independent and obligatory rules, unstable and imprecise organizational arrangements, and the existence of a dominant sectorial view of long-term economic development planning.