A patented calligraphy method that can perfectly analyze the structure of Chinese characters invented by Mr. Wang Xuechen, the founder of my country's Five-Day Calligraphy Express, a famous expert on standardizing Chinese characters, an expert in thinking training, and the founder of Zhonggongge Education Chain Using the Zhonggong grid to practice calligraphy makes it easier for calligraphers to analyze and understand the structure of Chinese characters, and remember the structure of Chinese characters in a short time. Through the Zhonggong grid, students can develop observational intelligence (special attention training), spatial intelligence, and body coordination. Intelligence, introspective intelligence, language intelligence and other comprehensive abilities enable students to practice pen calligraphy in five days in a relaxed, happy and confident manner, that is, to achieve the goal of "teaching a man to fish is worse than teaching him to fish"