Book sterilization device convenient for fixing books

The invention provides a book sterilization device capable of fixing books conveniently. The book sterilization device comprises a cabinet body, a supporting plate, a transposition driving part, a clamping driving mechanism, a rotation driving mechanism, a plurality of positioning frames, a plurality of clamping assemblies and a plurality of blocking parts. When the clamping assembly and the positioning frame are matched with each other to clamp the spine of the book, and after the supporting plate is located at the sterilization station and the blocking piece is located at the avoiding station, the book can be blown away by air blown out by the air supply assembly, and therefore effective sterilization of the book is achieved. When a book is put into the book sterilization device, a user only needs to align the spine of the book with the positioning frame, and the book does not need to be separated manually, so that the operation process of fixing the book is simplified, and the sterilization treatment effic