Abstract: As the development of tobacco leaf threshing and redring technology in China, cigarette factories have had the basic conditions for using lamina in primary processing line. A large of lamina have been used in factories. But some of the primary processing line should be reconstructed to adapt to the transition from handed-leaf to lam ina. In this paper, the packing form, quality index and processing technology of lamina were discussed. The lam ina direct conditioning and the vacuum pre-conditioning technology were also compared. The advanced and available lamina processing technology was recommended.