Globalization and the benefits of economies of scale has resulted of domestic firms. internationalization in the greater degree on Expansion to international market and successful operations results due to the synchronization of all the functional departments in the organization. In this aspect Human Resource Management also plays a significant role in the international business of the organization and hence its activities is famously known as International Human Resource Management. Various IHRM practices like international staffing, training, compensation, cross cultural issues, performance management etc., becomes strategically important to meet the goals of the organization. Several researchers in the past have contributed significantly to the literature on IHRM practices. This paper is a conceptual study on the important contributions of past researchers relating to the IHRM practices particulary with respect to staffing, issues and performance training,compensation management. management, cross cultural issues and performance management