This book is a tutorial on the metrical knowledge of classical poetry creation. It is divided into two parts. It explains the rhythm of poetry and the rhythm of words respectively. It also explains how to write poems and lyrics from the aspects of rhyme, example explanations of poems, rhyme and rhyme of words. It also has appendixes of rhyme explanations of poems, rhymes between Li and Weng, commonly used typical word scores, etc. The book explains that the identification of word sounds and rhymes must be based on the "Pingshui Rhyme" of the "Guangyun" phonology system; learning the rhythm of poetry should start with five-character rhymed poems; the key to five-character rhymed poems is to distinguish the two forms of rhyme and rhyme. The content of this book is simple and concise, and it provides an introduction to the study of poetry and rhythm. As long as you read this book carefully and complete the exercises specified in this book, you will be able to master the basic skills of poetry writing. It will be helpful for beginners to delve into the art of poetry creation.