Shariah Koperasi Case study can be spesication according to medium businesses that have more 12 branch copanies and more than 4000 member in various cities in Indonesia and also received certification from the Shariah DSN-MUI. In conducting its business activities Koperasi does not have a medium to interact online and to its members, so sometimes less effective in performing the service. in addition, see the State Minister of Cooperatives and Small and Medium Enterprises of the Republic of Indonesia Number: 07/Per/M. UMKM/IX/2011 on Guidelines for Cooperative Development of Large-Scale in Article 4b and Article 16 which states that the activities of production, processing, and marketing through the support and utilization of information and communication, then made design Shariah system of Electronic Customer Relationship Management in Koperasi using the method of object-oriented systems development approach to Rapid Application Development (RAD) using the notation tools Unified Modelling Language (UML). Koperasi Shariah system of Electronic Customer Relationship Management system produces alternative media in the data management and service members, marketing and promotional products. Keywords: Shariah Koperasi, Customer Relationship Management (CRM), Rapid Application Development (RAD), Unified Modelling Language (UML).