This research aimed to study the impact of changing prices of some Egyptian export agricultural crops on the volume of exported quantities of those crops (potatoes, onions, oranges, grapes), using some economic models such as the Direct Model and the Substitution Elasticity Model in its most important foreign markets, where the specified prices are The main factor in determining the volume of demand for exported crops and determining the degree of flexibility of foreign markets for the study crops. The results showed that the elasticity of the Saudi, Emirati, Kuwaiti, Russian, and English markets for potatoes amounted to about -0.370, -0.508, -0.892, -0.417, -0.512, respectively. This explains that by increasing the export price of potatoes by 1%, there is a decrease in the quantity of exports. Potatoes for these markets amounted to about 0.37%, 0.50%, 0.89%, 0.41%, 0.51%, and their significance was proven statistically at a level of significance between 1% and 5%. The results also showed that the elasticity of the Saudi, Emirati, Kuwaiti, Russian, and English markets for onion crops amounted to about -0.503, -0.723, -0.344, -0.627, -0.576, respectively. This explains that by increasing the export price of onions by 1%, there is a decrease in the quantity Onion exports to these markets amounted to about 0.50%, 0.72%, 0.34%, 0.62%, 0.57%, and their significance was proven statistically at a level of significance between 1% and 5%.