After leaving office, Ye Yusen "returned to the boat with only stones, and entered the room without wheat". He was depressed, so he decided to go to Shanghai, where he had wandered as a teenager. When he first arrived in Shanghai, things changed, and most of his literary friends climbed high or died. He first stayed at the famous Yipin Xiang Hotel (No.27 Tibet Road), which was the earliest large-scale multi-storey hotel in old Shanghai, and foreign scholars liked to get together here. He has no friends in Shanghai, and he has made an appointment with a fellow countryman, who is also Wu Qingyao, a fellow of Nanshe. Wu is two years older than Ye. Together with Ye Yusen and Ding Chuanjing, he is known as the "third son of the iron urn" (also known as the "third son of the Dantu"). He once wrote a preface for Ye Yusen's Selected Poems of Zhong Ling, and also served as the secretary of Premier Liang Shiyi of Beiyang Government. At this time, he is the head office affairs director of Bank of Communications. After the two met and chatted, Wu Zhiye Yusen had the intention of living in Shanghai for a long time, and wanted to live in a branch, and sold words to collect a pen-running fee. Wu said to him, "Bai Zhonglei, the secretary of the Bank of Communications, was a member of the Southern Society and passed away a few days ago. If you are willing to bear the burden, I will try my best to introduce you." So Ye Yusen replaced Bai Zhonglei as the secretary-general of the General Management Office of Shanghai Bank of Communications. The post of Secretary-General has a good reputation, but he is actually a senior staff member, completing the daily application of vulgar words.
Ye Yusen is an official in Anhui, and he is clean-fingered. He has a wife, a concubine, three sons and a sister-in-law in his hometown and Anhui, and all of them are subsidized by him. Ye's family has no land, real estate and deposits, and he is not good at housework, so that he is heavily in debt, and it is difficult to maintain his expenses by the income of bank staff. Therefore, he also teaches at the National Labor University and Shanghai University, and also writes a bill to sell calligraphy and painting to supplement his family, but he is still short of money. Later, he boarded in the staff dormitory of Bank of Communications near Zhabei Zhonghua Road and Fangbang Road near North Station. He suffered from emphysema due to long-term overwork, but he still worked during the day. "Every midnight, I rolled up Yi Deng Ruo, ... I was dizzy, and the brain was hot." Doing academic research in the cramped study at night, often at two or three o'clock at night. "Well, I'm trapped by vulgar officials, and I'm drawing lots of books and months." He wants to recover the time of stay for a long time's official career.
Ye Yusen's study of Oracle Bone Inscriptions began when he was the governor of Chuxian County. Liu E, a fellow countryman, is not only famous for his literature, but also a knowledgeable sage, a predecessor whom he admired. In 193, the publication of "Tieyun Hidden Turtle" was a sensation and became a major event that shocked the cultural circles. Ye Yusen wrote: "Only the land doesn't love treasures, and the Yin ruins dig up the legacy. Liu Tieyun, my hometown, began to reveal the hidden turtle. " When Dangtu (called "Gu Shu" in ancient times) was the county governor, "robbing Gu Shu dragged the ink ribbon, and the desk mountain accumulated books. The joy of the stone is hard to get, and when you are in the pillow corner, you think about insects and fish. " In the spring of 1925, introduced by Liu Yizhi and Wang Bozhen, Ye Yusen bought 1,3 pieces of Oracle bones sold by Zheng Anxiang, Liu E's later wife (including 8 fine pieces), so he selected 24 pieces, with textual research, and wrote "A Textual Research on Tieyun Tibetan Tortoise". In December of the same year, it was written into two volumes, Yin Qi Gou Shen, which was published in the 24th issue of Xueheng. Liu Yizhi wrote a preface for it, saying, "My friends are fishing, and they spend a lot of time in leisure, so that they can learn more." He praised Ye's master of Qixue, Wang Guowei and Luo Zhenyu, by saying that "he learned from his family, so he could be a master of Qixue". The "Confucian classics" here means that Ye Yusen, who was born as a scholar, has a solid foundation in Confucian classics. Ye Yusen has a "Selection of Zuo Zhuan" (unpublished, now in Zhenjiang Library), which shows that he knows well about Confucian classics. Ye Yusen has cited the Bamboo Slips of Khan to study and interpret Oracle Bone Inscriptions in The Hook and Sink of Yin Qi. In 1929, he wrote Shuo Qi and Yan Qi Zhi Tan, which were published in the 31st issue of Xueheng, thus establishing Ye Yusen's position and influence in the field of Oracle bone inscriptions. He had correspondence with scholars Wang Xiang, Luo Zhenyu, Dong Zuobin and Guo Moruo at that time. Wang Wengru, the son of Wang Xiang, still kept five letters from Wang Xiang to Ye Yusen in 1923, covering a wide range of topics, or talking about words, history and even work.
Dantu County (now Zhenjiang City) is a tiny place, but it is an important town in Oracle Bone Inscriptions, with many talented people. There are many poets in Ye Yusen who like stone tablets. For example, Zhao Zengwang (1847-1913) was knowledgeable, good at "primary school", good at calligraphy, and especially good at seal cutting. Besides Liu E, there are other famous people who study philology, including Liu Yizhi, a good friend, and brothers Chen Bangfu and Chen Banghuai. Chen, a Dantu, is a famous family of Shuowen. Chen Bangfu (1892-1977, the word Mo Di) is 12 years younger than Ye Yusen. He is proficient in the Book of the Later Han Dynasty, and he wrote academic works such as chronology in his early twenties, and he is very fond of inscriptions on bones and tortoise shells, such as Textual Research on Yin Ruins, Doubting Yin Qi and Storing Yin Qi. Ye Yusen appreciated him very much, and once gave him the collection of Liu E's heritage. There are six main methods to study and interpret ancient Chinese characters in Ye Yusen: (1) paying attention to the analysis of glyphs, especially interpreting Chinese characters according to the radicals; (2) pay attention to the interpretation of words from the perspective of the meaning of words; (3) Pay attention to the comparative interpretation with other ancient Chinese characters; (4) Pay attention to tracing the meaning from Oracle Bone Inscriptions's initial form, and interpret Chinese characters by understanding the intention of the ancients to create Chinese characters; (5) Starting from Oracle Bone Inscriptions's own harmonic sound system, using the knowledge of ancient phonology to interpret Chinese characters; (6) Pay attention to the analysis of Oracle Bone Inscriptions's essays, analysis of essays, and the interpretation of words in inverted books. Ye Yusen's study of Oracle Bone Inscriptions had a certain influence on people's systematic research and interpretation of ancient Chinese characters.