Abstract .Along with the times, the economic sector in Indonesia is increasingly experiencing growth, especially in the contract of cooperation. One contract that is experiencing development is the mudharabah contract, because it is believed to facilitate someone who wants to do a business but does not have enough capital. However, there are still mistakes made by people or companies that make a mudharabah agreement. One of them is a mudaraba agreement between an individual who happened at a shoe shop called the Black White Store in the Majalaya area and one of the investors       The purpose of this study was to determine the concept of mudharabah contracts according to muamalah fiqh, and to know the practices of mudharabah contracts conducted between Black White Store store owners and capital owners. The research method used is a qualitative method. The data obtained comes from observations, interviews, books, articles, journals, and sites on the internet regarding the research conducted.       The results showed that, the mudharabah contract conducted between the owner of the Black White Store store and the owner of the capital is the mutharqah mudharabah agreement which is not bound. The Black White Store store focuses on selling shoes, over time, the owner of the capital violates the contract. The capital owner added the sale of clothes without asking for approval to the store, which of course violated the mudharabah mutlaqah agreement.