Through this work, we have tried to find out more about the issue of SME financing, by shedding light on Islamic finance, and what it can bring to small businesses. This research is aimed at students wishing to do research on the topic of participatory financing, in addition to the problem of SME financing, since most banks refuse to give credit to companies that do not present sufficient guarantees. In this work, I tried to gather information from several books. I have referred to them. Nevertheless, it has to be admitted that the small and medium-sized enterprise sector, like the Islamic banking system, is both recent, and they have amazed the economic world with their rapid growth. If ever there was cooperation between the two, things could go faster, for SMEs as well as for Islamic banks.