An analysis of the reasons for the high development of calligraphy in Tang Dynasty.

1. Economic development and cultural prosperity;

2. After the Sui Dynasty, the starting point was higher;

3. The personnel system breaks the hereditary system and realizes the imperial examination system, which makes culture and education more civilian and expands the foundation;

4. The rulers like it and regard it as a subject for scholars;

5. Literati absorb the nutrition of folk practical brushwork structure;

6. Art linkage among painting, literature and book circles.