Abstract: In this paper, the author gives a detailed examination of the Southern Cabinets and Northern Cabinets Si Ku Quan Shu. Through the difference between the Southern Cabinets and Northern Cabinets Siku Quanshu, the relevant facts of the seven Si Ku Quan Shu are distinguished. The Author provide some clues and basis for Siku Studies in the future.

Key words: Si Ku Quan Shu, Three Southern Cabinets’ editions, Four Northern Cabinets’ editions, The paper, Shape and structure