Heat-not-burn device with external high conductivity

The invention relates to the technical field of smoking sets, and provides a heating non-combustion device with external high conduction performance, which comprises a base, a cigarette accommodating pipe, a gas-liquid phase change heat pipe and a heater, the cigarette containing pipe is used for containing tobacco and arranged on the base, and a mounting groove extending in the axial direction of the cigarette containing pipe is formed in the outer side face of the cigarette containing pipe; the gas-liquid phase change heat pipe comprises an evaporation area, a convection area and a condensation area, the gas-liquid phase change heat pipe is arranged in the mounting groove, and the gas-liquid phase change heat pipe is attached to the surface of the mounting groove; and the heater is arranged on the base and is used for heating the evaporation area. The heating non-combustion smoking set solves the problems that an existing heating non-combustion smoking set is low in heating rate and cannot evenly heat tobac