The objective of this study was to evaluate the effects of three plants densities (10,15 and 20 plants/meter of row) and of two drying process (in the field and on paved floor) of cv.IAC-China sesame (Sesamum indicum L.) seed yield, per area and per plant, measured by physical purity, weight of 1,000 seeds and germination, soon after harvesting and drying. Harvesting was made at the start of fruit dehiscense, followed by drying in the field and on paved floor. The experiment was setup in split plot randomized complete block design, with a factorial arrangement of treatments with four replications. Mean comparison were made by Tukey 5% of probability. Results showed that the density of 20 plants per meter of row resulted in higher yield per hectare while the density of 10 plant resulted in higher yield per plant; seeds dried on paved floor exhibited physical purity superior to those dried in the field; seeds produced in all plant densities were similar in germination percentages while, in the other hand, germination of seeds dried on the paved floor was superior to those dried in the field.