People face with decision making about several issues in their daily lives. Some of the decisions we made in our daily lives may be in easy structure while some could be complicated that they need to be considered extensively. Looking from the point of businesses, because implementation of decision making process and reaching a decision at the end of this process is more important than individual decisions, they need to spend more time on decision-making. Businesses usually face with multi-objective or multi-criteria decision-making situations that contradict with one another. In such circumstances, multi-criteria decision making methods are applied. SMEs (Small and Medium Size Enterprises) face with many problems during not only in the establishment but also in development stage. Fundamental reasons of these problems are financial issues. In order to solve these financial problems, banks are the most important parties they consult with. In this study, the criteria that are effective in bank preferences of SMEs operating in Eskişehir SME Organized Industrial Zone and the importance level of these criteria are aimed to be determined through AHP method. After data obtained with AHP survey are analyzed, it is observed that “Credit Effect” with importance level of 0,442 is the most important criteria in SMEs’ bank preferences. The second most important criteria that affects bank preferences of SMEs is “Price Effect” with the importance level of 0,271. This is followed by “Bank Effect” criteria with 0,148 importance level. The last two criteria in ordered list are “Businesses Effect” with 0,085 and “Personnel Effect” with 0,053. In the light of the results obtained from the study, suggestions were presented about keeping existing SME customers in their portfolio and gaining new SME customers.