At the same time, the formation of Dong Qichang's calligraphy style is also closely related to his efforts in using pen, writing, composition and ink. Dong Qichang has been tirelessly exploring traditional brushwork all his life. After studying a large number of ancient calligraphy posts, his deepest experience is the "emptiness" of the pen. He believes that only the pen is empty and harmonious, and the charm is born under the wrist; Only by "not making a real pen" can there be an ever-changing "no sag, no shrinkage, no harvest". In addition, in the knot, Dong Shi pays attention to implication, compactness and strength; In composition, inspired by Yang Ningshi's Jiuhua Tie and Immortal Living Method, he attaches great importance to the principle of alternating density and density, and increases the distance between words and lines to strengthen the visual contrast between black and white and reality, thus creating a simple and far-reaching artistic conception; In using ink, he attaches great importance to "using ink must make it moist, not boring, especially avoiding agricultural fertilizer, which is a great evil."