Researches in the field of close relationships support the assumption that early experiences with parents influence relationships with other people throughout life (Aronson et al., 2005). In adulthood, the object of attachment changes, people form various close and permanent relationships with others, including friendships (Seyfarth & Cheney, 2012). Attachment in adulthood can be determined by dimensions of anxiety and avoidance (Brennan et al., 1998) as well as with model of self and model of others (Bartholomew & Horowitz, 1991), based of which it is possible to determine four types of attachment: secure, preoccupied, fearful and dismissing. A friendship is described as a mutual relationship between two people who are attracted to each other and have a reciprocal interaction that enables them to satisfy their need for companionship and intimacy. Researches have shown that a person's attachment patterns have a significant relationship with the quality of friendship, therefore the aim of this research was to examine the relationship between different dimensions of attachment and the quality of friendship in individuals in the period of pre-adulthood or emerging adulthood. The survey was conducted online and included 191 young adult participants (125 women and 66 men) ages between 19 and 30 (M= 22.57, SD= 2.78). Brennan's Experiences in Close Relationships Questionnaire and McGill's Friendship Quality Questionnaire were used in the research. The significant positive correlation between the dimensions of anxiety and avoidance made it impossible to determine attachment styles on the participants of this research which is why this research is focused on separate dimensions of attachment. The obtained results indicate that there are no significant differences between men and women in the assessment of the dimensions of anxiety and avoidance, but in the assessment of the quality of friendship, women report higher levels than men. Furthermore, on the entire sample, just as on the subsamples of men and women, a negative correlation was found between the dimension of anxiety and the dimension of avoidance and the quality of friendship. Participants who report higher levels of anxiety and avoidance rate friendship quality as lower.