This study analysed the effects of foreign direct investment (FDI) and exchange rate movement on agricultural growth in Cameroon (1978-2014). The results revealed that in the long run, a unit increase in foreign direct investment (FDI) in the previous year led to increase in agricultural growth by 0.15 while a unit increase of exchange rate in the previous year led to decrease in agricultural growth by 1.18. There was bidirectional causality between exchange rate and agricultural growth. The results further revealed that exchange rate (EX) accounted for more 10.06% in the short run, to agricultural growth while foreign direct investment (FDI) accounted the more 24.71% in the long run to agricultural growth.