在鉴定检验当中鉴定人员常常会遇到一些很难辨认甚至变形的指纹或者掌纹,而这些残缺变形的指纹掌纹又不易区分和寻找它的特征,仅用宏观特征去区分和辨别指纹很难做出认定人身的判断。而指纹三级特征的引入能够增大指纹之间的区分度,其特征稳定存在,出现率很低,在实际检验中价值很高。本文论述了指纹三级特征的概念和国内外的研究进展,以及利用指纹三级特征可以做同一认定的鉴定依据和作为辨别真假指纹的重要依据。 In the identification test among the identification staff often encounter some difficult to identify or even deformed fingerprints or palmprint, and these incomplete deformed fingerprints are not easy to distinguish and find its features, only the macro-features to distinguish and identify the fingerprint is difficult Make a judgment of the person. The introduction of fingerprint third-level features can increase the differentiation between the fingerprint, the characteristics of the existence of stability, the occurrence rate is very low, in the actual test of great value. This paper discusses the concept of fingerprint three-level characteristics and domestic and foreign research progress, as well as the use of fingerprint three-level characteristics can make the same identification basis and as an important basis to distinguish true and false fingerprints.