This article is selected from "Collected Works of Xue Wenqing". This is a travel note that specifically describes the scenic spots and characteristics of Longmen. The author is from Hejin, and Longmen is a scenic spot in his hometown, so he writes it kindly and affectionately. He was also a Neo-Confucian who was upright and self-disciplined, and Longmen was the main achievement of the three-generation sage Xia Yu in controlling floods, so the article "reveals solemn thoughts and virtues". This constitutes the ideological characteristics of the article, highlighting Xia Yu's achievements in chiseling the Dragon Gate to connect the Yellow River and the respect of later generations in remembering Xia Yu's virtues. It highlights the strange and dangerous shape of the Dragon Gate and the ingenious architecture of generations. Throughout the whole text, there is a kind of affectionate pride of awe and admiration. . In the description of the wonders of Longmen and the beautiful scenery of rivers and mountains, it guides people to respect the virtuous and the noble, and to work hard, with a broad mind and a far-sighted vision. In terms of writing, it is both sketchy and detailed, with highlighted key points, similar to a close-up, each with its own characteristics. It is written that Mingde Palace is famous for its strong character through pines, Linsi Pavilion is famous for its foresight and far-sightedness to show feelings, Jishui Tower is amazing for its ingenious workmanship, and the stone niche is famous for its hanging The stone sky has many different shapes. Describe imagination, the text is concise, the momentum is strong, and the style is pure.