The aim of this research was to determine the relation between death attitude and distress tolerance and aggression and anger. For this, 135 subjects among 7,535 professional and specialist members of the Iran National Library were selected using convenience sampling method. They replied to Death Attitudes Profile-Revised, distress tolerance questionnaire, and aggression questionnaire. The results showed that the attitudes of approach acceptance, neutral acceptance, and escape acceptance had positive relation to distress tolerance and negative relation to aggression and anger while the attitudes of fear of death and death avoidance had negative relation to distress tolerance and positive relation to aggression and anger. Furthermore, all death attitudes predicted distress tolerance. But only the attitudes of approach acceptance, escape acceptance, fear of death, and death avoidance predicted aggression, and only approach acceptance, neutral acceptance, fear of death, and death avoidance predicted anger.