This study examined the relation between attachment styles and friendship motivation. Participants were 334 undergraduate students who completed the Relationship Questionnaire, the Friendship Motivation Scale, and an item about the number of their friends. The results of an ANOVA indicated the following. (1) Secure attachment styles were associated with high autonomy and low controlled motivation for friendship, and a large number of friends. (2) Preoccupied attachment styles were associated with high autonomy and controlled motivation for friendship, and a large number of friends. (3) Dismissive attachment styles were associated with average autonomy and controlled motivation for friendship, and a small number of friends. (4) Fearful attachment styles were associated with low autonomy and high controlled motivation for friendship, and a small number of friends.