The sowing density consist in achieve the seed distribution in the space, for to increase the yields. Most bean producers use inadequate densities and below the recommended. For prove this, was developed performed in the Agro-industrial Grain Enterprise of Sancti Spiritus “Valle Caonao”, from November 2016 to February 2017, on a Red lixiviate Ferralitic soil. The sowing of cultivar “Buenaventura” was carried out of machine forms for to regulate the four sowing densities fallowing: 160000, 180000, 200000 and 220000 plants ha-1. The cultivar used was with red grain colors and sowing was done. The morph-physiologic indicators determine were: average number of leaf per planta, average high, dry matter (g plantas-1), average legumes, average grain per legume, mass of 100 seeds (g 100 seeds-1) and yield (ton/ha). The results showed that the largest significant increases of sowing densities on morph-physiologies indicators and yields of the bean grains. The best results were achieving by the density of 200000 plants per hectare and overcome the national media production in ton/ha.