A fast binding protecting clamp for textbook and document has a transparent area plate with two creases for bending freely to see the cover and back cover of the textbook conveniently; a mounting slotfor fixing book is adhered on between the two creases; a connection hole is formed on the book mounting slot; and a T-shaped double fork connection nail is mounted on the connection hole. Advantages:when the protecting clamp of the utility model is used for binding textbook and document, the T shaped double fork stainless steel nail is fixed in the binding line of the textbook without influenceto the free turning of the textbook; the T-shaped double fork nail can be bended at any time for binding and demounting; the protecting clamp can be used for making textbooks and other books of different specifications, can be used repeatedly, is beneficial to saving book covering paper and protecting environment, is convenient and fast, and can be operated by student himself.