Border markets of the driving force and the engine of development in regional trade boom and has been international, and in addition to that cause Knowledge transfer and economic interaction, it becomes cultural and diplomatic and also in creating employment Poverty reduction and accelerate further cooperation Between border areas in various neighboring developing countries, they play an important role. In the meantime, border markets between Iran and Afghanistan which play an important role in economic development, and they are an important means of economic communication between the two countries. Hence the purpose of this research Identify important and influential factors of border markets in establishing economic development and trade stability between Iran and Afghanistan and prioritizing the factors affecting it between the two countries. Hence to achieve this goal, Fuzzy SAW technique was used and to collect the data and information needed through a questionnaire it was taken by experts. In order to verify the information and results of the experts and the different approaches of the two countries to the issue in question, the experts and experts in the field of trade and commerce were divided into two groups: Iranian and Afghan (50 experts) and the questionnaires were completed separately. Results obtained according to Iranian experts As such, Sub-indicators of employment growth with a score of 1.533, Increase production by quantity 1/465 and Increase revenue with points 1/411 Are a high priority, But based on the opinions and results of Afghan experts The following indicators increase the good neighborliness with the amount 1/564, Increase national and political stability and security with points 1/469, And social security and stability with points 1/464, And social security and stability with points Finally,