摘要:Expanding exports through a diversified export basket can be effective in securing export earnings and long-term growth. In this study, the factors affecting the diversification of non-oil export in Iran with an emphasis on the real exchange rate misalignment during the period of 1981-2014 have been investigated. At First, the real exchange rate misalignment was measured by using a vector auto- regressive (VAR) model. Results show that there were two great misalignment in this years in Iran. Finaly, the effect of real exchange rate misalignment. on the volatility of non-oil exports in Iran was estimated by using a vector auto- regressive (VAR) model. The results indicate that the size of government, per capita GDP and openness have had a positive impact on the diversification of non-oil exports. While the real exchange rate misalignment and political instability have had a negative impact on the non-oil exports diversification. Hence, the implementation of appropriate foreign exchange policies, in the long run, by eliminating the exchange rate misalignmen increase the diversification of non-oil exports.