本文通过比较后金天聪汗信牌实物文本、档案及《清实录》记载,对清入关前起用信牌的具体时间、背景及信牌内容做了简单地考释,以补实物、档案记载之不足,并试图纠正《清实录》中有关牌文内容的错误记载。同时阐明清朝实施于其所辖蒙古地区的区域法《蒙古律书》(《蒙古律例》)中的某些条文吸收了该信牌文的内容,使之进一步地法制化了。 This article makes a simple examination of the specific time, background and letter card content of the letter card before the clearance of the Qing Dynasty after comparing the physical texts, files and the records of “Clear Record” of Jin Tian Cong, , And tried to correct the erroneous record of the contents of the license in “Clear Record”. At the same time, it is clarified that certain provisions of the “Mongolian Law” (“the Mongolian Law”), a regional law implemented by the Qing Dynasty in the area under its jurisdiction, absorbed the content of the letter and further legalized it.