The rule of sentence division in classical Chinese was usually based on the mood particles, keywords, the mood particles at the end of the sentence, and the grammar structure. Generally speaking, the mood particles and keywords in classical Chinese would affect the result of sentence division, and the grammar structure would also have an impact on sentence division. For example, in classical Chinese, the terms and verb would usually appear in the form of auxiliary words such as " Ge "," Zhi "," Yu "," Er "," Zhi "," Ye "," Yi ", and " Yan ". These auxiliary words would also have an impact on the sentence. In addition, the sentence patterns of classical Chinese are also different, such as interrogative sentences, narrative sentences, exclamation sentences, etc. The changes in these sentence patterns will also have an impact on the broken sentences. Therefore, the analysis of classical Chinese sentences should be based on the specific sentence, combined with the context and grammar structure to judge.