Old rhymes can be divided into several categories.

The old physical metrical poems can be divided into two categories: metrical poems and quatrains. According to the number of words, it can be divided into five methods and seven methods, five unique and seven unique.

The expression techniques of ancient poetry: metaphor, exaggeration, duality, repetition, contrast, setting off, synaesthesia, pun, personification, imitation, description, lyricism by borrowing scenery, and lyricism by supporting objects.

Ancient poems can be divided into narrative poems, reasoning poems and lyric poems in terms of expression techniques.

From the perspective of subject matter, ancient poetry can be divided into: expressing ambition, mourning for immortals, talking about Zen and reasoning, writing scenery and expressing feelings, thinking about women, chanting epic poems, frontier poems, pastoral poems, life poems, leisurely seclusion poems and farewell poems.