Agricultural prices play a vital role in the allocating recourses among competing activities. In this context, the main purpose of this paper is to present a measure of relative price variability (RPV) among 58 agricultural products and to investigate the relationship between the fluctuations price of product agriculture with inflation and GDP is investigated. The range variance of total price of agriculture product of Iran had high fluctuations in period 1348 to1383 and maximum variance total price of agriculture product of Iran was fourteen percent in 1371 year. The result of this study shows that between coefficient inflation variable and variance of relative price of agriculture product of Iran had positive and significant relative. In addition coefficient GDP variable with variance relative price of agriculture product of Iran had positive and significant relative

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