In order to grasp the theme of The Peacock Flies to Southeast accurately, we must break through the prejudices, restore the context, explore the deep meaning of its image, and observe it from the angle of literature ontology and aesthetics. Therefore, it is not difficult to find that its theme is probably that the author exhorted people to draw lessons from the tragedy of Jiao Liu, and to strengthen their moral cultivation in order to ensure the harmony of marriage, family and even the whole society.