Master Hong Yi's calligraphy is refined and macro-oriented, coarse and fine. If we trace back to the evolution of its style, it can be divided into three stages: the metamorphosis and the appearance of fetal interest. In the secular period, he was immersed in the North Monument, and there were many world words such as books, poems and chapters, but his style was not strong. Become a monk in middle age, wash away the lead, and write more Buddhist scriptures and old sayings so that the rhyme will not fade; After half a century, the more ancient, the more eclectic, the more refined, the more elegant, the more elegant and elegant, thus establishing his position as a master in the history of China calligraphy.