This paper examines the assessment of secondary school curriculum in Nigeria. The paper delves extensively into the areas of curriculum and focuses on different topical issues such as conceptual framework of curriculum, historical development of curriculum in Nigeria, curriculum changes and factors responsible for curriculum changes in Nigeria. It further explores the questions of the need for curriculum change. The paper also examined the key role played by group and individuals towards the actualisation of curriculum change in Nigeria. Series of suggestion and possible solutions to curriculum problems have been offered for enduring and suitable curriculum in Nigerian secondary schools. The paper also explores the strategies for making the curriculum more relevant and how it can be designed to address the needs, interest and aspiration of our society at large.