《隋书·经籍志》、《新唐书·艺文志》、《补南北史艺文志》均著录有魏晋南北朝时期的小说《器准》或《器准图》,但其书早已亡佚。其内容和作者等问题均存疑颇多,且史料记载多有抵牾。通过史料考证可以推断:《器准》的作者为元延明,信都芳为之作注,有《器准注》一书传世;《器准》是一部带有图画的关于浑天、欹器、地动、铜乌、漏刻、候风等古代精巧天文仪器的著作;《器准图》应当就是《器准》,同书而异名;隋唐时期,元延明的《器准》已经不再流传,取而代之的是信都芳的《器准注》;无论是《隋书·经籍志》所著录信都芳的《器准》,还是《新唐书·艺文志》所著录信都芳的《器准图》,实际上都是信都芳的《器准注》;《器准图》在《隋书·经籍志》中收入小说家,而《新唐书·艺文志》却在历算类著录《器准》,这是由于不同的小说观念造成的。 “Sui Shu Jing Ji Zhi”, “New Tang Shu Yi Wen Zhi”, “make up North and South Shi Yi Wen Zhi” are recorded in the Wei, Jin and Northern and Southern Dynasties period novel “accurate” or “accurate”, but the book has long been lost. There are many questions about its content and author, and there are many historical records. Through historical research can be inferred: “quasi-author” as Yuan Yanming, the letter for all notes, a “quasi-note” a book handed down; “Quasi” is a picture with the muddy days, The works of ancient exquisite astronomical instruments, such as the geocentric apparatus, the earth moving apparatus, the copper wu, the leak carving, the westerly wind, etc .; Handed down, replaced by the letter are Fang’s “device quasi-note”; whether it is “Sui Shu Jing Ji Zhi,” a letter written by Fang are “accurate” or “New Tang Dynasty Yi Wen Zhi,” the recorded letter is Fang “Quasi-map”, in fact, are all letters Fang “quasi-note”; “quasi-map” in the “Sui Shu · Ji Zhi Zhi” income novelist, and “New Tang Dynasty Art Records” is in the calendar Class recorded “quasi”, which is due to different concepts of fiction caused.