Cyclone binding is one of the binding forms of ancient books in China, also known as "Cyclone Leaf" and "Longlin Binding". This form has existed since the mid-Tang Dynasty. Its form is: long paper as the bottom, the first Ye Quan on the front of the scroll, from the second leaf, scales on the left side of the lowest scroll. It is characterized by easy reading and is beneficial to protecting the leaves of books.

Due to the lack of sufficient information, there is no unified view on the shape of cyclone suit in academic circles. One view is that the whirlwind suit is to glue the first page of a folded book with half a piece of paper, and the last page of the book with the other half, and to bind the first and last pages of the book with the book backpack with a whole piece of paper. There is also a view that when copying a book, the whirlwind suit is copied one by one, and then glued to the scroll-type base paper one by one like fish scales. When the book is rolled up, the scale of the book rotates in one direction, just like a whirlwind, so it is also called whirlwind paper.