In order to analyze the disease and its cause of three Yue kiln celadons unearthed from tomb of Shuiqiu in Lin' an county by classifying the disease states of these celadons, observing the micromorphology of the related celadon specimens, analyzing the chemical compositions of the specimens by using the technology X - Ray Fluorescence Spectrometer ( XRF) , and analyzing the samples adhered on the surfaces of celadons by XRF and ion chromatography (IC). The results showed that there were some defects in the firing process for this batch of Yue kiln celadons. The body and glaze of many half - firing celadons were looser than the ordinary celadons, so they would be corroded more easily by the soluble salts in the earth. The rifts even would be aggravated by the change of the environment. On this basis, the diseases legends were defined and drawn, and the diseases types were classified. This work would be beneficial to the development of a scientific and effective measure , and the protection and restoration of the heritage restoration would be more scientific, targeted and operable.