From the development process, Wei and Jin dynasties paid attention to expressing artistic conception, represented by Wang Xizhi. During the Sui and Tang Dynasties, calligraphy theory became more and more mature. There were both wild cursive scripts and regular scripts that focused on statutes. Calligraphy in Song Dynasty pursued individuality, ignored statutes and advocated deliberate impossibility. With the further development of society, the Ming dynasty gradually became civilian and secular.