Various applications have been found for the ability to use computers to display the shape of archaeological objects, such as earthenware vessels, earthenware figurines and stone vessels. These applications include the technology used for creating survey maps, making precise measurements, preparing replicas and creating web content. However, since surface measurements are commonly conducted using lasers or with the stylus method, it is difficult to measure complex surfaces, internal configurations, thicknesses and volumes. In the present research, with regard to easily breakable earthenware vessels, earthenware figurines and stone vessels, we propose a method for easy storing of accurate 3D data obtained with an industrial X-ray computed tomography (CT) device. The 3D surface image obtained can be used for measuring the thickness and volume of earthenware vessels, for reproducing their shapes by using polygons, and for constructing high-resolution surface models. The present method has been utilized for measurements of actual archaeological objects, for the preparation of duplicates (replicas), and for the creation of web content, and its effectiveness has been verified.