The objective of this article is to study the external competitiveness of Morocco. To do so, we first make a sectoral analysis of Moroccan international trade. This analysis reveals the sectors and products in which Morocco should specialize, as well as the products in which Morocco has a strong export potential. Then, we study the impact of the introduction of price and cost competitiveness indicators in the export's equations of Armington (1969). Using a Vector Error Correction Model (VECM) estimated over the period 1988-2017. The principal results confirm that Moroccan external competitiveness can’t be measured only by the price factor. We also show that the competitiveness is also reflected with other factors like cost of production and quality.JEL Classification : C22, F14, F13, O55