在文件检验工作中,对于印油印文与书写墨水字迹交叉时序的判断一直是个难题,同时也是一个重点。判断印油印文与书写墨水字迹交叉的时序,可推断文件物证是否与案件事实相符,从而为司法机关的侦查破案和民事纠纷的审理提供线索和依据。本文研究的光谱法与常规的朱墨时序检验方法相比,方法简单、图像清晰、结论直观,为文件检验开创了新的前景。 In document inspection, judging the timing of the cross between ink seal and writing ink has been a difficult problem and also a key point. Judging the timing of the cross between Indian seal and written Chinese ink can infer whether the documentary evidence accords with the facts of the case, so as to provide clues and basis for judicial investigation and civil dispute hearing. The spectral method studied in this paper is simple, clear and concise compared with the conventional Zhu Mo time-series test method, which opens up a new prospect for document inspection.