Family businesses are one of the cornerstones of national economies and constitute a large part of economic activities. Family businesses are of great importance both in the world and in our country in terms of quality, number and added value to the economy. Developing technology and the increasingly competitive environment make it difficult for businesses to survive and inevitably lead to new changes. Corporate governance practices are of great importance for the successful management of family businesses and their transfer to the next generations. In other words, it is possible for businesses to provide competitive advantage and achieve efficiency in activities with the phenomenon of institutionalization. This is the basic principle for businesses to sustain their existence. Therefore, businesses have to gain strength against possible fraud and other negative situations by structuring their current situation. In this respect, it is not possible to prevent fraud and irregularities with classical methods in today's conditions. Conventional methods increase economic costs even more. The existence of corporate governance principles, which have become a necessity rather than a need, is of vital value in the correct execution of activities in businesses, making the right decisions, monitoring employees and management in the functioning of processes, ensuring continuity and taking necessary measures against possible fraud. In this context, corporate governance practices play an important role for businesses to become more reliable institutions and to consolidate their position in the market. In this study, firstly, the concept of corporate governance, corporate governance principles and definitions of family businesses are presented in the basic conceptual framework. In the last section, the effect of corporate governance principles on fraud awareness in family businesses is emphasized.