To discover the impact of different size of beam spots on the characteristics and main components of celadon raw materials in EDXRF and to further understand the uniform characteristics of the glazing color of different celadon products on this basis. In this paper, the characteristics of raw materials of different celadon products are tested under two conditions, namely with the beam spot diameter of 2 mm and 100 µm respectively. The test results of different conditions show that under different beam spot conditions, the stability of test data of celadon products is different. The test data of large beam spots are relatively stable and with good reproducibility while the variation of data under micro beam spot conditions is relatively significant. It can be seen from this study that the micro-zone analysis based on the EDXRF can improve the analysis accuracy of the characteristics of ancient ceramic raw materials.
