This study investigated the relationship between group norms and interpersonal attraction in group work setting. It may be assumed that interpersonal attraction, like group functions, has two conflictive orientations: instrumentality and emotionality. Relationship of the two orientations in interpersonal attraction to group norms was examined in two experiments. Results of Experiment 1, with 66 female university students, suggested that specific contents of group norms influenced both instrumental and emotional attraction. Experiment 2, with 60 female university students, indicated that emotional attraction had normative influence on task selection and goal setting. Conflicting dynamics of the two orientations in group-work setting are discussed.