Some analytic methods used to study lacquer film from Fangwanggang site, an important tomb of Han Dynasty excavated in 1996. These methods were block skiving, optical microscopy, ash test, X-ray diffraction and Fourier transform infrared spectroscopy, etc. The micrographs showed that several obvious layers existed in the lacquer film, including plaster layer, ground layer and painting layer. Both the red lacquer films and red patterns have natural lacquer as film – former and cinnabar (HgS) as red pigment. During Han Dynasty in China, people always applied the red lacquer liquid onto the black or brown film, that belonged to a conventional regulation mentioned in the contemporary documents. Some quartz grains had been observed in the lacquer film. The micrograins showed that they are in good psephicity with small grain diameter of about 4~70(m, indicating the quartz was processed by human. The infrared spectrum of a kind of melanocratic drawing which was popular during Han Dynasty seemed similar to that of the brown film. This indicated that natural lacquer could been used as the film – former in both of them.