Chu Bamboo Book in Anhui University (vol.2) published in August 2022 (hereinafter referred to as “Anda II” or “An Da Jian”) is the latest collation of the bamboo slips of the Warring States Period in Anhui University by the Research Center for the Development and Application of Chinese Characters of Anhui University, which includes two parts: Zhongni Yue and Cao Mo Chen. Through a preliminary comparison and analysis of the writing phenomena corresponding to the purposes of such articles as Cao Mo Zhi Chen and Zhong Ni Yue in An Da Jian, Cao Mo Zhi Zhen in Shang Bo Jian (Chu Bamboo Book in Shanghai Museum), the author found some special phenomena related to He Wen. For example, although the writing of Cao Mo by An Da Jian seems to have various ways of writing, this way of writing may contain a profound interpretation of the meaning of the text by the scribes at that time. This writing phenomenon is of great value for in-depth consideration: 1.When the two words “Shang Xia (上下)” and “Zhi Suo (之所)” can be taken apart or not, the words that cannot be taken apart are often written as He Wen, and the words that can be taken apart are often not written as He Wen; 2.When the original two words “Jun Zi (君子)” and “Xiao Ren (小人)” cannot be separated, the written form of He Wen may represent a special emphasis. At the same time, through a comparative study of the use of Chinese characters in Cao Mo and Zhongni Yue, we may speculate that although Cao Mo and Zhongni Yue may not belong to the same style of writing, at least in the arrangement of He Wen, There may be some similar writing logic in these two chapters - the speculation about this writing logic may be used in the analysis of other difficult texts in Zhongni Yue.