The study of Mudharaba in Islamic banks is one of the studies in the field of Islamic economics, and it deals with the state of Mudharaba in Islam and the importance of the Islamic bank in this field, in early Islam and beyond, the study dealt with the relationship between the parties to Mudharaba process, in addition to being one of the legal formulas that Islam enacted for the development of money, as it is capable of achieving economic growth in a way that achieves the interest of both the owner of the money who cannot invest his money and the worker who does good work and does not have money.