In Indonesia today, the business has grown into a diverse form. One form of business development is a business system with Multi Level Marketing business with its Syariah Tiens is a Multi Level Marketing system that has been declared suitable based on the Shariah fatwa DSN MUI. As a business with multiple levels, a distributor of tiens has dual roles are product sales and recruiting new business partners. The existence of these multiple roles, the business person has a tendency to do collision and mutual interests justify everything in so that it can create a business activity that is not healthy. A healthy business that is based on business ethics. Therefore, this research aims to know the application of Islamic business ethics on business practices Syariah Tiens Multi Level Marketing in Yogyakarta . This research uses qualitative descriptive study types. The sampling techniques used i.e. purposive sampling. This research was conducted in Yogyakarta. The technique of data collection was done through interviews, observation, and documentation. In this study using triangulation techniques as a source of the validity of the data. As for the data analysis techniques using methods, Miles and Huberman. Analysis on this model consist of interacting components, namely the reduction of data, data panyajian, withdrawal and verification conclusion. The results of this research indicate that, based on the principles of Islamic business ethics in marketing practices that are carried out by a distributor of Tiens Sharia in Yogyakarta, note that on its business practices already implemented Sharia Tiens strategy good business but in practice there is still inconsistency with the principles of Islamic business ethics in the context of the recruitment section especially distribution new business partners. This happens only on a group of distributors only.