Cold Food Post is the representative work of Su Shi's running script. This is a poem to send a revival, and it is a sigh of life caused by Su Shi's relegation to Huangzhou for three years. The poem is desolate and affectionate, expressing Su Shi's melancholy and lonely mood at this time. The calligraphy of this poem is produced in this mood and situation. The whole calligraphy is full of ups and downs, radiant and unrestrained, and there is no shortage of pens. Huangzhou Cold Food Poetry Post has a great influence in the history of calligraphy, which is called "the third running script in the world" and is also a leader in Su Shi's calligraphy works.