《郑文公碑》是北朝书法的扛鼎之作,也是研究郑道昭父子生平的重要史料。分上下两碑,两碑之间存在多处异文。其中下碑“研图注篆”之“图”指图籍,一般没有异议,而“篆”则争论较多,久无定论,其说有七:一、书体说;二、书法说;三、铭记说;四、彖辞说;五、图书史籍说;六、通“史”说;七、作“箓”说。我们认为“图书史籍说”有一定启发意义,然而稍感遗憾的是,该说系从上下碑对勘而来,尚缺乏其他书证的支持。通过文献的系统清理和辨析,特别是与《魏书·郑道昭传》之“篆素”对读,认为“篆”可引申为“古籍”之义,“研图注篆”即研究和注解古代的图书典籍。 “Zheng Wen Gong Bei” is the Northern Dynasty calligraphy carry tripod for the study of the important historical data of Zheng Daozhao’s father and son’s life. Divided into two points, there are many differences between the two etiquette. Among them, the “monument”, “map” refers to the map, there is no objection, and the “seal” is more controversial, long time inconclusive, there are seven: one, the book said; Second, the calligraphy that; three, remember that; four, 彖 resign; five, books, history books; six, pass “history ” said; In our opinion, “Book History of Books” has certain enlightenment significance. However, it is somewhat regrettable that this theory has been borrowed from the upper and lower emperors and lacks the support of other documentary evidence. Through systematically cleaning up and differentiating the literature, especially with the compilation of “Zhuan Su” in “Wei Shu Zheng Daozhao Biography”, we think that “Zhuan” can be extended to the meaning of “ancient”, “ Note seal ”is the study and annotation of ancient books and books.