Improved method of tobacco leaf recipe

The invention relates to an improved method of a tobacco leaf recipe. According to the method, on the basis of obtaining an original tobacco leaf recipe and the near infrared spectrum data of each tobacco leaf ingredient contained in the original tobacco leaf recipe through detection, the calculation and the processing are performed by a non-negative regression coefficient regression method; the proportion coefficient of each kind of tobacco leaf ingredient in the original recipe is obtained; the tobacco leaf ingredients are sequenced according to the sequence from greater proportion coefficients to smaller proportion coefficients; the improved tobacco leaf recipe is obtained through the module design and the framework design. The method provided by the invention has the advantages that the recipe design balance improvement can be better realized; on the basis of maintaining the traditional recipe, the design efficiency of the new recipe is improved; the method is favorable for stability and harmony of the cigarette recipe product development.