The invention provides an infusion heating device. The infusion heating device comprises a fixed part and a rotary part, wherein the rotary part rotates relative to the fixed part; the fixed part comprises a transmission device, a fixed base and a fixed cover; the rotary part comprises a rotary heating part; the fixed base comprises a fixed base end cover and a fixed base toothed part; the fixed base end cover is connected or integrated with the fixed base toothed part; the transmission device is mounted on one side of the fixed base end cover; the fixed cover is mounted at one end, away from the fixed base end cover, of the fixed base toothed part; the rotary heating part is mounted between the fixed base end cover and the fixed cover; the transmission device drives the rotary heating part to rotate; at least one heating element is arranged in the heating part; the fixed base toothed part and the rotary heating part form an accommodating cavity for accommodating an infusion tube. The infusion heating device has the advantages that the infusion tube can be folded and bent conveniently, heating sources are arranged around the infusion tube during heating, and sufficient and even heating is achieved.