Abstract: The first reported case of insulinoma in our country was published on Journal of Clinical Investigation in 1936, making it the 18th reported case worldwide. It included a comprehensive 14-page medical record of social service department and its attachments. The document objectively described the in-hospital visits and follow-up work for this case, revealing the visitation procedure of social service department. It also highlighted the excellent relationship between social service department and clinical doctors at that time, as well as highly internationalized management of Peking Union Medical College Hospital.