Abstract: In order to improve the casing for domestic blended type cigarette, the experiments on burley casing was conducted. The domestic burley tobacco was treated with ten kinds of sugar, eight kinds of amino compound, nine kinds of organic acid, five kinds of pyrazine, thirteen important flavoring materials, and thirty extracts, respectively. Some flavoring materials and additives were selected from the points of style characteristics, richness, smoothness, conglomeration, offensive odor, irritancy and aftertaste of tobacco smoke. The formulating modes for casings were developed. The routine and aromatic constituents in some cased tobacco samples were analyzed. The experiments indicated that better results were achieved by appropriate addition of sugars, amino compounds, pyrazines, some flavoring materials, and extracts to domestic burley tobacco. However, the organic acids should be added selectively depending on the properties of burley tobacco.