We administered Averill's questionnaire on “the everyday experience of anger” to 123 adults and 130 university students who lived in Osaka, Japan. They were asked to rate their recent anger episodes in terms of the instigator, motive, response, etc. It was found that (1) there were two factor dimensions in the motives of anger which were interpreted as hostile and instrumental motives; (2) hostile anger was more aroused when the instigators were not so familiar to them and had authority over them, while instrumental anger was more aroused when the instigators were their loved ones or friends; (3) hostile anger, compared with instrumental, was intensified principally when the subjects perceived their instigators had malicious intent; and (4) the subjects who felt hostile anger, compared with instrumental, were likely to wish to commit aggression against their instigators.