This research was conducted on the fact that there are many conventional banks that open shariah units (dual banking systems), they offer a variety of advantages and advantages of each that has become their innovative. Both in terms of sharia and the products offered are still very limited on the same product., The attitude of the community is very positive and significant in their intention to become customers in Islamic banks in general, so that it can cause changes in the behavior patterns of conventional bank customers who use the interest system to customers Islamic banks that use profit sharing (mutual benefit). This situation requires the banking manager to make adjustments to the marketing program again and there is a general assumption that public attitudes are a strong factor in predicting customer behavior, predicting future product demand and to develop marketing programs as the main objective precisely.