The Abductor digiti minimi muscle, and the other hypotenar muscles, frequently presents anatomical variations. According to literature, this muscle can be composed by one, two or three muscular beams, as well as it can present accessory muscular beams. In dissecations of 40 formolized hands, we objectified to study the morphology and variations of the Abductor digiti minimi muscle. The muscle presented two muscular beams in 82,5 %, three beams in 15% and only 1 beam in 2,5 % of the cases. In none of cases accessory muscular beams were observed. When compared with literature, are observed statistics difference in some studied aspects. The results found in the research allow to affirm that the Abductor digiti minimi muscle is formed by two muscular beams in the biggest part of the cases. The division of the muscle in three muscular beams is common of being found