As cultural diversity dominates the modern world culture, it holds that each culture may demonstrate its own uniqueness and value. The modern Olympic Games also respects that all cultures are equal in nature, forbidding any acts of discrimination. when the 20th century, South Africa has long-term policy of apartheid, which is against the Olympic spirit, leads to objection of South Africa from taking part in all kinds of sports events. Rumors even have that South Africa is about to face the hardest sanctions against itself-being disqualified from the Olympic Games membership. The South African government, however, took their economic strength and diplomatic relationship as their stronghold keeping participating in the international sports event exchanging, in against of international pressure. Finally it eats its own bitter fruit, that is, the International Olympic Committee (IOC) decided to lance a series of sanctions against South Africa. This study is based on documents analysis to collect related data and records, and to organize, analyze, sum up to issue of the International Olympic Committee carried out on the long and painful process of debate over and over again. In this historic incident, the original ideal of pure competitive sports of Olympic Games was manipulated by politics, and became, in a sense, "a war of non-weapons." South Africa problems made a great impact to IOC on the aspects of equity, justice, friendship, mutual respect, human rights, and deepening of peace. After struck by this incident, it is hoped that the IOC can defend the Olympic spirit with more powerful determination. Hopefully, in accordance with the principle of nondiscrimination, people can deeply root with a peaceful, friendly, and progressive belief that eventually leads to build a more peaceful world.