The study was carried out at the "San Roque" Experimental Station, which belongs to the National Institute of Agrarian Innovation - INIA Loreto, is characterized by having a high terrace and slightly acidic soil. Which was based on determining the effects of varieties and planting densities on grain yield and morpho-agronomic characteristics in Vigna unguiculata L. Walp. "Cowpea". The ANVA for grain yield found a high statistically significant difference for the sources of variation (density and varieties) and no statistical significance for the interaction between varieties and densities. The highest yield was for the Castilla variety (V3) with 2.36 t/ha, for densities; for grains, a higher grain yield was obtained, with 187,500 plants/ha (D3) with 2.53 t/ha, the same interaction with the highest yield was for the Castilla variety. For plant height, there is no significant statistical d...