Among them, Ge Peiling thinks that the theme of frontier poems in the late Tang Dynasty is mainly Xiao Sa, with gloomy colors, miserable scenes, depressed feelings and low spirits; The most distinctive feature of frontier fortress poems in the late Tang Dynasty is the description of soldiers' sufferings. This kind of works has a large number, novel interest and high achievements. In the late Tang Dynasty, the emperor was in power, the government was corrupt, the people were poor, and the enthusiasm for heroism became colder and colder, which was replaced by a new trend of humanitarian thought. In artistic expression, frontier poems in the late Tang Dynasty carried out many new pursuits and creations. Many poems attach great importance to the beauty of images and ingenious techniques, and often make tragedies and sufferings into beautiful works of art.