The utility model discloses a heat-not-burn device which comprises a main shell, a heat-not-burn device and a heat-not-burn device, the inner sleeve is movably mounted in the main shell, a containing cavity is formed in the inner sleeve, and a bottom plate part is arranged at the bottom of the inner sleeve; the heating body comprises a heating part and a mounting part, the mounting part is fixed in the main shell and located below the bottom plate part, the heating part is partially located in the containing cavity, and the lower end of the heating part penetrates through the bottom plate part and is fixedly connected with the mounting part; the rotating shaft is rotationally mounted in the main shell; the driving piece is located in the main shell and fixedly arranged on the rotating shaft in a sleeving mode, and one end of the driving piece makes contact with the outer wall of the inner sleeve; the push rod is slidably connected with the main shell, one end of the push rod makes contact with the end, away from the inner sleeve, of the driving piece, the other end of the push rod is exposed out of the side wall of the main shell, and the push rod is used for driving the driving piece to rotate to drive the inner sleeve to move relative to the heating part in the direction away from the mounting part. According to the utility model, the risk that residual cigarettes remain on the heating body can be effectively reduced in the process of replacing herbal products.