Wei Ti refers to the calligraphy style in the Northern Dynasties, Yuan and Wei Dynasties, which can be found in stone carvings and cliff statues at that time. Regular script is a fledgling script, divorced from the official law, so its appearance has changed, and it is called' Northern Monument Style' or' Wei Ti', which is the highest level in Yuan, Wei, Chao and Wei Dynasties. From the perspective of the history of calligraphy, "Wei Ti" is the development period of regular script, and it was later called "True Book" or "True Book", which is a commonly used font in China's calligraphy. Its glyph is square, unlike the flat one written in official script. Regular script is still the reference standard of modern calligraphy in China, and another kind of calligraphy, pen-and-ink, has also developed.