The invention belongs to the technical field of cigarette liquid of an electronic cigarette, and particularly relates to a high-fragrance tobacco extract and application thereof. The extract is prepared through the steps of heating baking, low-temperature extraction, ultrafiltration membrane filtering, molecular distillation and the like. Through the increase of baking procedures, the aroma substance concentration is well increased; by using a low-temperature extraction technology, the original fragrance features of the tobacco are well maintained; meanwhile, thermosensitive substances are well protected; further, a membrane separation-molecular distillation process is used, so that the aroma substances are well enriched; meanwhile, macromolecular substances such as sugar, protein and resin and high-boiling-point substances of long-chain aliphatic hydrocarbon and the like in the tobacco extract can be well removed. After a proper number of high-fragrance tobacco extract provided by the invention is added into the cigarette liquid of the electronic cigarette, the cigarette fragrance of the electronic cigarette is intense; no burnt smell exists; in addition, the aftertaste harmony is good; the fragrance transmission performance is good; a well application effect is shown; good popularization and application prospects are realized.