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The purpose of this paper is to analyze the production and materials of lacquerware unearthed in Shaanxi by using modern instrument analysis technology, and to provide basis and reference for the research and protection of lacquerware in Shaanxi. The analytical instruments are stereomicroscope, X-ray diffraction and electron microscope spectrum. The analysis object is a sample of Ming Dynasty painted coffins unearthed in Shaanxi. The analysis shows that the tire structure consists of four layers: lacquer fiber layer, gray paint layer, coating layer and pigment layer, and the flat woven hemp fiber is used. The main components of gray paint are Shi Ying and feldspar. The red pigment coated on the surface is cinnabar and the yellow pigment is gold.