大圆日戳是清代开办国家邮政后使用的第一套正式邮政日戳,使用时间不长。过去仅知是在日本制造,至于其设计制造过程,为哪些邮局制造过,每个邮局制造了多少枚,如何分发使用,各局大圆戳有哪些特征,多年来中外集邮家仅凭邮品实物分析研究,有些尚未取得一致意见。本文根据新发现的海关档案文献,搞清楚了设计制造过程,并提出了有关大圆戳的鉴别意见。 The Great Day Date Stamp is the first set of official postal stamps used after the establishment of the State Post in the Qing Dynasty and has not been used for a long time. In the past only known to be made in Japan, as for its design and manufacturing process, for which post office made, how many pieces each post office made, how to distribute the use, Some have not yet agreed. Based on the newly discovered customs archives, this paper clarifies the design and manufacturing process, and puts forward the discerning opinions on the big round stamps.