The broad objective of this study was to analyze the effects of consolidation policy in Nigerian banking institutions on agribusiness sector performance. The specific policies of interest were merger and acquisition policy. The study covered 1995-2014 periods. Secondary data from CBN annual reports and statement of accounts, CBN bulletin and National Bureau of Statistics were used for the study. The data were analyzed by the use of regression models. Findings revealed that merger and acquisition consolidation policy in the Nigerian banking institutions, value of banks loan to agribusinesses, lagged value of national savings, population, rainfall and government capital investment to agribusiness sector significantly influenced agribusiness output in Nigeria within the study period. Merger and acquisition consolidation policy in the Nigerian banking institutions, external reserve, capital formation and agricultural export significantly influenced government credit allocation to agribusinesses in Nigeria within the study period. Merger and acquisition consolidation policy in the Nigerian banking institutions, exchange rate, rate of domestic utilization capacity for agribusiness commodities and population significantly influenced agribusiness export growth in Nigeria within the study period.