_{A two-year experiment from 2022- to 2024 was conducted to study the effect of natural farming on field and seed quality parameters in onion seed crop. Among the various treatments, the maximum plant height(cm), number of leaves per plant, number of umbels, umbel diameter (mm), number of seeds per umbel, minimum days to seed harvesting, 1000 seed weight (g), seed yield per plot and hecctare (kg) and lowest diseases incidence were reported with natural farming treatment: T10 – Onion sole crop with four sprays of Buttermilk, which was stastically at par with T4 – Onion+Fenugreek 4 sprays of Buttermilk and conventional control (T13) . Similarily supreriority in seed quality, such as germination (%), seedling length (cm), dry weight (mg) and vigour index-I and II, was observed in the natural farming treatments T10 and T4. These two natural farming treatments also resulted in a higher B:C ratio than that of conventional farming system and thus can be recommended for quality seed production in onion.}