The invention relates to the technical field of tobaccos, in particular to a regulation method of tobacco leaves of cigar outermost layers. The method comprises following steps of penetrating tobaccosand putting tobaccos onto a rack; enabling tobaccos to naturally wither, performing control a yellowing period; performing control during a color fixation and leaf-drying period; performing control operation during a vein-drying period; and regaining moisture and putting tobaccos down from the rack. Fresh tobacco leaves are put on the rack in a regulation room and naturally wither. By controllingthe temperature and humidity of the environment of the regulation room, color changes of tobacco leaves and moisture dispersion of tobacco leaves are consistent. Therefore, blades of regulated tobacco leaves are little in color difference. There is no evident color difference between the same batch of tobacco leaves. The tobacco leaves are moderate in moisture, sufficient in oil content and goodin flexibility.