《武经总要》和《营造法式》是目前所知最早以图示法解释水准仪的文献,但1985年出版的《中国古代建筑技术史》认为《武经总要》所附的水平图存在错误后,后续学者在研究宋代的水准仪时多引其观点,并认为宋代的水准仪主要传承自唐代.笔者在前人研究的基础上,结合原始文献资料,重新探讨《武经总要》所附的水平图;并进一步对《营造法式》中被前人忽略的水准旱平测量方法进行分析,客观评价了宋代水准仪较唐代的创新性. “Wu Jing Zong Yao” and “Constructing French Style” are the earliest known explanations of water level instruments by pictographic methods. However, the “History of Ancient Chinese Architecture and Technology” published in 1985 considered that the horizontal maps attached to “Wu Jing Zong Yao” existed After the mistake, follow-up scholars in the study of the level of the Song Dynasty cited its point of view, and that the level of the Song Dynasty mainly inherited from the Tang Dynasty.Based on the previous studies, the author combined with the original literature, to re-explore the “Wu Jing Zong Yao” The paper also analyzes the measurement method of level drought, which was neglected by the predecessors in “Creating a French style”, and objectively evaluates the innovativeness of the Song Dynasty level instruments over the Tang Dynasty.