The main purpose of this research was studying the impact of exchange rate on date export as one of the most important and greatest foreign currency income earned horticultural products in agriculture sector in Iran. Selected time period in this study was chosen between 1991 and 2011. For this purpose, ordinary least squares (OLS) method has used to estimate the relationships between the value of date export and the variables taken from stationary tests. Library research method has used for the analysis. In this regard, required data have collected from various scientific and research resources. The results indicated that, exchange rate is a crucial factor for dates export and also for exporters. In addition, other factors specially government policies have been placed in export model. In this field, short-term outsourcing foreign policy has decreased the export value. Results also showed that, applying exchange rate unification policy without an appropriate exchange rate to encourage exporters has negative impact on dates export. Therefore, by applying exchange rate stabilization policy, according to inflation in the country, the potential exporters’ income has reduced and production costs have increased alternately.