CAIWUPU is a dictionary of lexicographical features. This book has the nature of an encyclopedia. Recording to the survey, this book has six versions with our searching: first published in ouchi; the second published in ouchi; A copy of the blue grid; A copy without a grid; A copy of the single CAIWUPU, The new published by Korea’s governor. The first one is our research object. This book has an activity effect on collation of ancient books. Dictionaries research. Meibutsu research. For example, the collation of ancient books can correct the error in the book and it is not the modern researcher can pay attention to it. The Dictionaries research can give some supplement in the grant dictionary like Grand Chinese Dictionary, Chinese Dictionary which make it by the Current scholar. The Meibutsu research can help us to know the Classification system and Interpretation system in ancient Korea. It has an active effect on related research.