The invention discloses a method for improving Yunyan 87 cured tobacco variety. The method comprises the steps of: selecting rose pelargonium Weimulange as a root stock and Yunyan 87 cured tobacco seedling as a scion, grafting by adopting an approach grafting method, and culturing to obtain new plants. According to the invention, the new plants have small variation coefficient of agronomic characters, flourishing root systems, wide applicability, drought resistance and few diseases and pests; particularly, the incidence of mosaic disease and bacterial wilt of Yunyan 87 is obviously reduced; the advantages of the parents are better gathered in the tobacco quality, disease resistance and other characters of the new plants, and the comprehensive characters of the new plants are superior to those of Yunyan 87; the cured tobacco of the new plants is golden yellow in color, high in oil content, loose in structure, moderate in leaf thickness, harmony in chemical ingredients, good in essence quality, enough in essence quantity and light in rose and mint essence; and the new plants have better industrial utilization value.