The present invention provides a method for preparing an integrated heat-not-
burn cigarette cartridge, comprising: A) mixing tobacco raw materials, adhesives, water and spices, forming the mixture, freeze-
drying the mixture, and obtaining a porous tobacco incense stick inner core; B) stirring and mixing the tobacco raw materials, adhesives, enhancers, and humectants, pouring the mixture into a mold containing the porous tobacco incense stick inner core, and freeze-
drying the mixture to obtain an integrated heat-not-
burn cigarette cartridge. The present invention utilizes tobacco raw materials and additives to prepare a cigarette
cartridge through a freeze-
drying method, wherein the interior of the cigarette cartridge contains a rich three-dimensional porous
honeycomb structure, which has the advantages of a large specific surface area, a high
porosity, and a
low density, forming an air passage, facilitating the rapid
dissolution and release of
smoke and
aroma components, reducing the suction resistance, and providing a better user experience. The internal passage structure and
porosity of the three-dimensional porous cigarette cartridge can be adjusted by the
solid content of the raw materials. Moreover, the integrated cigarette cartridge prepared by this process has better uniformity, and the stability of the product will be significantly improved.