Abstract: Longquan local raw materials , such as Huangtan clay , Pucheng clay , Zhuxiang clay , and Baoxi clay were used to prepare Longquan celadon by the traditional ceramic technology .The chemical composition and the microstructure of the Longquan celadon samples were characterized by high -speed analyzer, XRD and SEM, et al.The porcelain characteristics were analyzed using the K2O-Al2O3-SiO2 phase diagrams .The results show that the main phases of Longquan celadon are quartz , mullite and porous, as well as a small amount of glass .There is the interface of the glass and the crystal in the glaze well developed .It is studied Longquan celadon features the effects by the raw materials .

Key words: Longquan local raw materials , such as Huangtan clay , Pucheng clay , Zhuxiang clay , and Baoxi clay were used to prepare Longquan celadon by the traditional ceramic technology .The chemical composition and the microstructure of the Longquan celadon samples were characterized by high -speed analyzer, XRD and SEM, et al.The porcelain characteristics were analyzed using the K2O-Al2O3-SiO2 phase diagrams .The results show that the main phases of Longquan celadon are quartz , mullite and porous, as well as a small amount of glass .There is the interface of the glass and the crystal in the glaze well developed .It is studied Longquan celadon features the effects by the raw materials .