Manufacturing Resource Planning (MRP II) system is a modern production planning and control method that is relatively new in our country. In today's competitive and continuously improving industrial scene MRP II systems play an important role in increasing productivity. Electronics industry is a field that is highly suitable for MRP applications and can easily set a good example for further improvements. This work aims at applying a professional MRP II softv>^are to a relatively large electronic equipment manufacturer. In this aspect the semi-formal operating system of the company is totally reconstructed and formalized to meet the requirements of the new system. To achieve these a phased implementation plan is developed and executed and thus a successful implementation is performed. Finally, the initial results of the new system are discussed.