The paper examined the impact of agricultural development on the growth of Nigerian economy. Extant literature on agricultural development and its impact on the economic growth and development of Nigeria were reviewed. Extant literature showed that several agricultural development programmes by successive administrations in Nigeria have not achieved its desired goal and the challenges were numerous ranging from corruption, inadequate funding, the overdependence on oil, etc. Data for the study were the gross domestic product (dependent variable) and aggregate agricultural contribution (independent variable) for 2000 to 2018 obtained from the Central Bank of Nigeria Statistical Bulletin and National Bureau of Statistics (2020). A Bivariate regression analysis of the variables was carried out to determine the relationship between the variables. The analysis and findings of the study showed that there is a positive linear relationship between the variables and that the contribution of agriculture sector leads to commensurate increase in the GDP of the country. Recommendations were that the linkages between agriculture and other sectors be strengthened to increase the effect of agriculture growth on the economy. This can be achieved through increased productivity and the development of agriculture value chain, improved sensitization of the populace, reduction in corruption and providence of necessary financial assistance to the agricultural industry.