Ni Nyoman Ari Mayadewi, was born in Denpasar on September 27, 1968. Formal education began at SD Negeri 2 Kerobokan (1981), continued at SMP Negeri 2 Denpasar (1984), and secondary schools began at SMA Negeri 3 Denpasar (1987). Higher education set up in 1993 at the Department of Agronomy, Faculty of Agriculture, Udayana University with the thesis title: “The Effect of Mulch Thickness on Experiments and the Results of Several Sweet Corn Varieties (Zea mays saccharata Sturt)”. In the same year, was accepted as a lecturer in the Department of Agronomy, Faculty of Agriculture, Udayana University until now.

In 1995 married to Ir. I Made Sadiyasa, while completing the Postgraduate Program in the Agricultural Sciences Program at Gadjah Mada University in Yogyakarta, which can be completed in 1998 under the title of Thesis: "The Effect of Spacing and Type of Manure on Weeds and the Result of Corn Maize (Zea mays saccharata Sturt)”. From this marriage were blessed with two children, namely Putu Gde Adhi Paramanandana and Made Syanindita Putri Larasati. In 2018 completed doctoral study at the Agriculture Study Program of Udayana University with a dissertation entitled: "Characterization of Guava (Psidium guajava L.) Diversity in Bali Based on Morphology, Genetics, and Chemical Composition of Fruits".

In addition to permanent lecturers at the Faculty of Agriculture, Udayana University, also active in several management organizations including the Indonesian Women's Farmers in Bali, the Indonesian Farmers Harmony Association in Bali, and the Indonesian Association of Agronomists in Bali. Also active as an observer at Agro Bali: Journal of Agriculture, Panjisakti University, Bali, and actively participated in managing the International Journal of Biosciences and Biotechnology, Udayana University.