Bilingual education and its effectiveness have been a considerable problem in countries, irrespective of their level of social and economic development and the objective of its implementation, which can be either the multinational structure of society or the colonial structure. background. However, the type of system implemented varies depending on government policy and public attitude towards bilingual education (Močinić, 2011, 176). The purpose of this article is to examine the current system of bilingual education in Nigeria and identify the extent of its effectiveness, taking into account the colonial context and the dimensions of a developing country that create strong premises to unbalanced bilingual education in the country. If one considers the monolingualism of students as the most significant evidence of the country's inability to successfully implement bilingual education, one must side with Igboanusi (2008, 730), who considers the Nigeria's current bilingual education system as ineffective. Furthermore, the paper will further discuss the benefits of the bilingual education system in Nigeria in terms of its sufficiency to achieve the objective of its implementation. A brief description of the country of Nigeria follows, primarily focusing on its population and linguistic indicators, demonstrating its relevance to the issue of bilingual education. Nigeria is a West African country with a population of 166.6 million (World Bank, 2012). Under British rule from 1800 to 1960, Nigeria adopted English as its official language and Yoruba, Igbo and Hausa remained as its main languages. Currently, Nigeria is implementing transitional bilingual education, which involves children using their mother tongue in the early stages of education, that is, primary school, while the second end. ..... middle of article...... and introduces a rich area for further research. Works Cited Benson, CJ, 2002 Actual and potential benefits of bilingual programs in developing countries, International Journal of Bilingual Education and Bilingualism, 5:6, 303-317 Igboanusi, H., 2008 Mother Tongue-Based Bilingual Education in Nigeria: Attitudes and Practice, International Journal of Bilingual Education and Bilingualism, 11:6, 721-734Močinić, A., 2011 Bilingual Education, Metodički obzori, 6(13), 175-182Omoniyi, T., 2003 Local policies and global forces: multiliteracy and indigenous languages ​​of Africa, Language Policy 2, no. 2 (2003): 133-152. Salami, LO, 2008 It is Still “Double Take”: Mother Tongue Education and Bilingual Classroom Practice in Nigeria, Journal of Language, Identity & Education, 7:2, 91-112 World Bank, 2012 . Overview of Nigeria. http://data.worldbank.org/country/nigeria