The national style is a historical style that takes the country as the unit and narrates historical events respectively; Biography is a genre that reflects historical events by describing the activities of characters; Chronological style is a style that arranges the history books of historical events with chronological clues.

The most representative national style is Guoyu, which is not only the first national style history book in China, but also the historical prose of some countries, and has been compiled into a book by the historians of Jin State. The most representative biographical work is Historical Records, which is the first biographical history book in China. The official Twenty-four History and other history books in China were compiled in a biographical way. As for the way to record history in chronological style, it originated in China and was created by Zhou historians around 84 1 BC. Zuo Zhuan perfected the style, Xun Yue Hanji initiated the chronological style, and Sima Guang became the chronological style of general history.