The invention provides a method for planting flue-cured tobacco K326 and a method for flue-curing tobacco. The flue-cured tobacco K326 is planted through a special planting, secondary topping and tobacco harvesting mode, and the fertilizer applying mode, the field water control and seedling culture mode and the deep tilling, ridging and transplanting mode are improved, so The method is suitable for planting the flue-cured tobacco K326 and is strong in operability, scientific and practical, the phenomena that after transplanting, runt seedlings do not germinate, early blossoming happens and the leaf enlarging of top leaves is difficult can be effectively reduced, early growth and quick tillering of tobacco plants can be remarkably promoted, the leaf enlarging of upper leaves of the K326 is promoted, the field holding property and maturity of tobacco are improved, the ratio of flue-cured green impurity tobacco is reduced, the usability of upper leaves is improved, and yield and quality are improved. The tobacco obtained through the planting method is flue-cured through a three-stage type delayed aroma enhancement method, the ratio of green vein tobacco is reduced, the synthesis of aromatic substances is promoted, and the flue-cured tobacco has the advantage of being fragrant and strong in aroma.