Paper is an important material for recording cultural achievements. The evaluation of age, kind and status of degradation of paper forms the basis of its longterm conservation. Due to sampling restrictions in the analysis of cultural relics, nondestructive approaches are intensively sought for. This paper introduce the progress of research and developmental prospects of some nondestructive techniques used in deterioration studies, evaluation and identification of paper relics, including infrared spectroscopy, Raman spectroscopy, nuclear magnetic resonance spectroscopy, acoustic emission,and Xray spectroscopy.