Strategic or institutional management can be defined as the conduct of drafting, implementing and evaluating cross-functional decisions that will enable an organization to achieve its long-term objectives The strategic management process consists of three stages: strategy formulation, strategy implementation, and strategy evaluation. Therefore, strategic management involves all internal and external organization decisions. SWOT analysis is the most important tool for decision makers in strategic management process, because it enable the managers to discover and collect the facts that resulted from internal and external analysis. This analysis can be a good base for strategy formulation, but it is not non-defect. It includes no means of analytically determining the importance of factors or assessing the fit between SWOTS factors and decision alternatives and is mainly based on the qualitative analysis. Many researchers develop different techniques to quantify the SWOT analysis, but these methods are not comprehensive. In this study, we develop a fuzzy method model for quantitative weighing of SWOT strategies. The decision maker’s imprecise information are regarded by fuzzy numbers in this model. To consider dependency among factors and sub-factors, we use ANP technique in our research. We demonstrate our model with a case study example and compare results of our research with prior research.