A batch of Five Dynasties ceramics, including celadon, white porcelain, and glazed architectural components, was excavated from the palace site of the Nanyue Kingdom in Guangzhou, Guangdong Province. This article presents a technological study of celadon, using energy dispersive X-ray fluorescence (ED-XRF) and portable X-ray fluorescence (pXRF)spectroscopy for analyzing the composition of the body and glaze. The results reveal that the celadon wares were produced at at least four different kiln sites: the Meixian Shuiche Kiln, characterized by low titanium content in the glaze, producing celadon with a lustrous, translucent glaze and fine crackle patterns; and the Gaoming Dagangshan Kiln, Changsha Kiln, and Yue Kiln, all producing celadon with higher titanium content. Additionally, the low-titanium wares are compositionally consistent with those found at the Emperors' Tombs of the Southern Han Kingdom. This research provides important data for the technological study of ancient ceramics in Guangdong Province.