與刻本鑒定首重辨明刻印時代不同,活字本鑒定的基本任務是甄别被鑒定者是否爲活字本。由於相當多數活字本並無明確文字證據説明其爲活字本,即便有所謂文字證據者亦可能與實際情況不符,因此版本學者重視歸納總結活字本所獨有的物質形態特徵作爲鑒别依據,並通過長期實踐得出了一系列切實司用的判斷標準,諸如行字歪斜不齊、文字墨色忽淺忽深、版框四角有縫隙等等。雖然在鑒定具體版本時,對於如何運用以上準則,有時存在不同看法,但對於 And engraved identification of the first identification of the Ming and Qing Dynasties engraved different times, the basic task of identification of movable type is to identify whether the authenticated character or not. Since a considerable number of viable texts do not have clear textual evidence to prove that they are viable texts, even those who have so-called written evidence may not be in conformity with the actual situation, the scholar of the version attached great importance to summarizing and summarizing the material features of the movable texts as the basis for identification and passed Long-term practice has come to a series of practical criteria for judging the Secretary, such as skewed lines, text ink suddenly flicker, the corners of the frame have gaps and so on. Although there are sometimes different views on how to apply the above guidelines when identifying a specific version,