The use of seeding machine in the family sector presents technical and economic viability. This technology was developed as animal traction seeder for direct sowing of Corn (Zea Mays) and Cowpea (Vigna Unguiculata). The seeder can also be calibrated for other types of crops. The performance of the developed seeding machine was evaluate based on seeds, spacing indexes, field efficiency, field capacity, crop productivity as a function of the speed and working depth of the seeder and cost-benefit. The field design adopted was in randomized blocks, in a 4x5 factorial scheme, with four replications and five treatments, totaling twenty observations employed. The operational performance of the seeding machine was evaluated with four levels of quantity of seeds in the deposit (25%, 50%, 75% and 100%), showing good performance in the distribution of corn and cowpea seeds in holes, the other factor evaluated was the seeding depths (1 and 3 cm for cowpea, 3 and 5 cm for corn) in relation to speed (2; 3 and 5 km/ h). The results showed lower spacing and failed seed deposition values, and higher than acceptable values with the use of shallower and greater depths and lower speeds, with a consequent increase in the final population. However, the average field capacity and efficiency of the seeding machine were 0.12 ha/hr (8.33 hr/ha) and 71%, respectively, the value of production revenue estimated was to 65% and 69%, showing that the seeding machine is economically profitable.