The word “dictionary” originated in China. China used to call the dictionary a “word book” which was used as a general term for the interpretation of Chinese characters, sounds, and meanings. At the beginning of the 20th century, in the era of modern China's alternating old and new cultures and Chinese and Western cultures, the social language has undergone tremendous changes, which has caused obstacles to the reading of the people and has also seriously affected academic research. In almost the same period, the Korean peninsula, which borders China, has also abolished the status of Chinese characters as an orthodox script under the influence of Japanese colonial rule. In the context of a similar era in which the culture of the country is influenced by foreign cultures, the “New Dictionary” and the “New Dictionary” of the Republic of Korea should be born on time. Both are compiled on the basis of the “Kangxi Dictionary” to comply with the new situation and new Form, hence the name of the "new dictionary." The characters in the two “The New Dictionary” are mostly the same, but there are also some characters in them, which are different because of factors such as referral and transmission. This article starts with the differences between the Chinese characters in the Chinese and Korean New Dictionaries and uses the Chinese character configuration theory to classify the differences in the shape of the characters and to trace the origin of the characters, combining ancient Chinese characters such as Oracle, Bronze, and Warring States. Further analysis of the reasons for the differences in the type of characters to analyze the characteristics of Chinese and Korean dictionary compilation.