Following the inefficiency of master plans, A new scenario called "City Development Strategy" was proposed in the literature of contemporary urban planning, Whose main purpose is to Improving the quality of life, organized urban challenges, refinement functional, create an collaborative approach, and so on. The present research seeks to Assess Factors Affecting the Implementation of Strategic Planning in Iran. This is an applied developmental research conducted with the documentary and survey research method. Statistical population consisted of Urban and regional issues professionals that sample size was estimated 200 people using Morgan table. We have used a SWOT for Master Plan Challenges and opportunities, to prioritize four CDS criteria used an AHP and and have analyzed the data using the SPSS software. This means, firstly the effective measures the effectiveness of CDS in the form of 4 criteria insight / knowledge, Normative / behavioral, Communication and management and 44 sub-criteria were drawn based on the hierarchical tree. Then, were asked from the experts to identify priorities based on paired comparisons. Weight each criterion in Expert Choice software was synthesized and analyzed. The results reveal that the institutional and managerial criteria with a weight of 0.322 first priority, Communication criteria with a weighted average of 0.301 in the second priority, Normative / behavioral criteria with a weighted average of. 298 in the third priority, Finally, attitude and knowledge criteria with an average weight of 0.237 Are the last priority. So the most important barriers to strategic planning in order of priority criteria insight / knowledge, Normative / behavioral, Communication and management to implement some strategies have been recommended, which they need the serious care of 57TManagement57T79T 57T79Tand57T79T 57T79Turban and57T79T 57T79Tregional57T79T 57T79Tplanners57T in Iran.