This thesis empirically examines the exchange rate pass through effects on Taiwan’s import prices of agricultural goods, wheat and corn. Applying both monthly and quarterly data, covering the period between 1996 and 2008, both short run and long elasticities of exchange rate pass through are estimated. The estimated results using monthly data are as follows: exchange rate pass through are complete in all three items immediately after the changes in exchange rates and fall gradually toward zero after 4 months. However, estimates using the quarterly data have shown complete pass through both in the short and in the long run with the estimates of long run elasticity are slightly lower than in the short run. The inconsistency could be due to the nature that most agricultural goods are harvested only once every year and hence higher frequency data are not capable of detecting changes in the imported prices.