In South Africa, the combination of ethnic and racial differences more than any other factor in a centuries-old process is influenced. Transformations and changes in the country since independence in 1910 was influenced by the said factor. Designed system was based on the segregation and apartheid and after apartheid ended in 1994; the country's political system was based on the realities of racial and ethnic indigenous. Although both Nigeria and South Africa have British colonial in their backgrounds the differences are in the objectives of the colonists. They had chosen South Africa to stay and the industrialization process was developed normally. While in Nigeria the purpose of colonialists was domination and exploitation of resources of the country. However, ethnic diversity, adding religious diversity in forms of both Islam and Christianity in Nigeria has been the main causes of a gap over the years after independence. Frequent coups and continuous military interference in politics and Governance, separatism, ethnic and religious conflicts, unfair distribution of wealth, the absence of influencing middle class, and political and bureaucratic corruption; has been the difficulties always suffered Nigeria. Since 1999, based on its new constitution, Nigeria has gone through four rounds of presidential elections and in these years there has not been a new coup. Overall all the experts agree that Nigeria is politically underdeveloped.