Today in the world, global competition is the basic element to define firms’ strategies as a result industrial economy has been experienced to pass toward to knowledge economy. At an age where total quality is of primary importance, efficiency can only be achieved by the successful utilization of human resources. Human resource development is one of the necessary needs of today’s business. Human resource development department has a very important role for supply of the human being to main resources of companies. Human resource development department has fundamental role for personnel recruiting, orientation and performance appraisal and so on. Human resource development issues to be addressed at the highest level in the organization and development of strategic decisions are required. This research will inform human resource development, scope and affecting factors on human resource development, human resource development functions and relationship between organizational effectiveness and human resources development.