The invention discloses a preparation method for tobaccos not combusting after being heated. The preparation method comprises the steps of shredding after tobacco leaf conditioning, drying, pulverizing, alcohol dissolving, digestion, separation, distilling, mixing and the like. A tobacco extract is subjected to fragrance recombination by molecular distillation, and is separated into light components and heavy components, the tobacco extract is compounded in proportion, adverse factors caused by the raw materials of tobacco leaves are weakened by the process, the beneficial features of the rawmaterials are highlighted, an essence and flavor solution is blended by taking plant extracts as main raw materials, fragrance quality, harmony, layering, comfort level and the like of cigarette not combusting after being heated can be improved, and thus, the smoking sense of a cigarette not combusting after being heated is close to that of a real cigarette. After judges smoke the prepared tobaccos not combusting after being heated, the result shows that compared with another cigarette not combusting after being heated, the tobacco has the advantages that the fragrance, harmony, offensive odor, irritation and aftertaste are separately increased by 0.5, 0.06, 0.1, 0.2 and 0.3, and are closer to those of a traditional cigarette, the satisfaction is high, the fragrance is full, and the aftertaste is pure.