Research has been conducted with a purpose to find out the potential of the extracts of leaves Ageratum conyzoides and Artocarpus champedan  as an antioxidant compared with vitamin C. Research was done by infused extraction method, and combination both of them with a partition 1:1, 1:2, 2:1. Keywords: Ageratum conyzoides L, Artocarpus champeden, DPPH, antioxidant   ABSTRAK Kombinasi ekstrak daun bandotan (Ageratum conyzoides L) dan daun cempedak (Artocarpus champeden) memiliki aktivitas antioksidan harga IC50 yang kuat dengan menggunakan kombinasi daun bandotan : daun cempedak perbandingan 1:1, 1:2, dan 2:1. Kata kunci:    daun bandotan (Ageratum conyzoides L), daun cempedak (Artocarpus champeden), DPPH, antioksidan