Heat-not-burn sheet, preparation method thereof, heat-not-burn product and preparation method thereof

The invention provides a heat-not-burn sheet, a preparation method thereof, a heat-not-burn product and a preparation method of the heat-not-burn product, and belongs to the technical field of tobacco products. The heat-not-burn sheet comprises a base material and a fuming layer arranged on at least one surface of the base material in a printing mode. Wherein the thickness of the base material is less than or equal to 1mm; the smoke generating layer contains an edible smoke generating agent and a biological functional substance, and when the smoke generating layer is heated to a working temperature range, smokable smoke containing the biological functional substance can be gradually released; and the heating non-combustion sheet is non-combustible in the working temperature range. According to the embodiment of the invention, the fuming layer is formed in a printing manner, and the fuming agent, the biological functional substance and the like in the fuming layer can be flexibly selected as required, so that