Abstract: To analyze the reconstituted tobacco sheet materials produced by three new processes for heated tobacco products, the structures and thermal behavior of the reconstituted tobacco were compared using scanning electron microscopy, thermogravimetry, and thermogravimetry-Fourier transform infrared spectrometry-gas chromatography/mass spectrometry. The results showed that: 1) For structural compactness, the three new reconstituted tobacco materials were ranked as: new rolling process > new coating papermaking process > papermaking-slurry composite process. 2) The reconstituted tobacco produced by the new rolling process, the new coating papermaking process and the papermaking-slurry composite process all had four weight loss stages with initial distillation temperatures of 43.12, 143.69 and 43.44 ℃, respectively. The maximum weight loss occurred in the second weight loss stage of the reconstituted tobacco produced by the new rolling process and the new coating papermaking process and the third weight loss stage of the reconstituted tobacco produced by the papermaking-slurry composite process. 3) Small amounts of characteristic aroma components were released from the different reconstituted tobacco samples by the detection method, such as isoeugenol by the new rolling process, vanillin by the new coating papermaking process, and 2, 3-dihydro-3, 5-dihydroxy-6-methyl-4H-pyran-4-one (DDMP) by the papermaking-slurry composite process. The main effluents from the pyrolysis of the reconstituted tobacco materials were glycerol, nicotine and minor characteristic aroma components, and all the three types of reconstituted tobacco were suitable for use as the tobacco materials in heated tobacco products.