Expansion of non-oil export has been emphasized in recent years by all governments and economic experts regard it as one of the essential strategies raising economic growth. Different schools of economics believe that foreign trade especially non-oil export is the moving motor of economic growth. Many experimental studies have been conducted in the field as well. The present study aims to investigate the relationship between non-oil export and economic growth in Iran in the years between 1978-2008. The data needed for this study- time series about and non-oil export and Gross national product statistics -were collected from the Iranian Central Banks. The basic model applied in this study is derived from some empirical study conducted by researchers like “Ibrahim mirza” on “oil exports, non-oil exports, and economic Growth” in 2003 aiming to explore the effect of non-oil export on economic growth. In order to estimate the coefficients of model, OLS method and Eviews software were used. After estimating the model and parameters, coefficients and considering the t statistic regarding non-oil exports, the research hypothesis stating that the incrassation of non-oil export in years between 1978-2008 affected economic growth is proven i.e., the coefficient concerning non-oil exports is statistically meaningful.