Many of old Asian paintings have been drawn with natural mineral pigments. The digital archive of those paintings, the identification of pigments used in the paintings and the retrieval of color fading are strongly desired. The multispectral image acquisition of those paintings allows the digital archive of accurate color information of objects. Moreover, it has potential of identification of used pigments and leads to the possibility of the retrieval of color fading. This pa1per describes our first trial of statistical analysis of the reflectance spectra of natural mineral pigments, image acquisition of those paintings by a multispectral camera and the construction of the GUI based segmentation tool for the aid of analysis of paintings