The invention discloses a method for changing characteristic fragrance of flue-cured type tobacco. According to the method, the flue-cured type tobacco is treated by using a nitrogen-containing substance, and the nitrogen content of the flue-cured type tobacco is changed, so that the characteristic fragrance of the flue-cured type tobacco is changed, and the flue-cured type tobacco achieves the fragrance of burley tobacco and can be used as tobacco of the burley tobacco fragrance type and added to a leaf formula.