This paper aims to analyse the production and materials of lacquerware unearthed in Shaanxi by modern instruments analysis technology ,what's more, to provide a basis and reference to the study and protection of Shaanxi lacquer Analytical instruments used stereo microscope, X-ray diffraction, electron microscopy The analysis object is painted coffin unearthed in the Ming Dynasty samples of S Analysis showed that the structure of the tire out lacquer fibrous layer, gray layer of paint, coating layer, pigment layer four, the use of flat woven hemp The main component of gray paint is a class of quartz and The red pigment coating the surface is cinnabar, yellow paint is the gold