"Su Shiyi Mountain" is a poem written by Han Hong, a poet of the Tang Dynasty. This poem describes the charming scenery of Shiyi Mountain. The first two sentences describe the scenery of the mountains seen when staying in the evening, and the last two sentences describe the color of the sky seen when walking in the mountains at dawn. The whole poem has a beautiful artistic conception and expresses the emotions in the scenery, expressing the poet's hard work, loneliness and desolation during the journey.