Preparation method of tobacco-aroma electronic cigarette liquid

The invention discloses a preparation method of tobacco-aroma electronic cigarette liquid. The preparation method includes: shredding tobacco leaves, using water and 95% ethanol as solvents for heating and extracting, performing hot filtration, cold storage, sedimentation and filtration to obtain tobacco extract, and concentrating to obtain tobacco leaf concrete; then weighing 5g of tobacco leaf concrete mixture with the weight ratio between the tobacco leaf concrete and amino acids of 10-2:1 and 100g of mixed solvent, putting the tobacco leaf concrete mixture into the solvent, and heating at the temperature of 80-100 DEG C for 3 to 12 hours to obtain a Maillard reaction product of the tobacco leaf extract; measuring the Maillard reaction product of dark red transparent liquid, peppermint oil and glycerin monostearate according to volume percents of 1-25%:0-40%:0-1%, supplying with propylene glycol or polyethylene glycol to the volume of 100%, and uniformly stirring to obtain the electronic cigarette liquid. By the method, aroma components enter the electronic cigarette liquid, tobacco feature aroma is given to the electronic cigarette liquid, irritation brought by an atomization agent is better covered, and the electronic cigarette liquid is closer to smoking feeling of consumers to true cigarettes.