图像档案具有文字记录不可替代的历史价值。然而由于种种原因,历史图像档案经常被修改,影响了其真实性。文章分析了图像档案被人为修改的状况和原因,还原图像档案历史真实性的必要性以及发掘图像档案历史价值的主要途径。 Image files with text records irreplaceable historical value. However, due to various reasons, historical image files are often modified, affecting their authenticity. The article analyzes the condition and reason of the image file being artificially modified, the necessity of restoring the historical authenticity of the image file and the main way to explore the historical value of the image file.