The traumatic experience in the mourning poetry of the Anti-Japanese War is rich and real, both the traumatic experience of individuals and the traumatic experience of the group. Under the influence of Gestalt psychology, people generally pursue the integrity and unity of the nationstate, and the defects in reality form a huge contrast with the integrity of the ideal, which gives birth to a sense of anxiety about the survival of the nation-state. In the question "Who caused our trauma?" In the thinking and attribution of this question, the poet has established a common enemy for the people, and the hatred of the enemy has aroused the general national feelings of the people.