Abstract: To analyze the thermal environmental profile for the lunar orbiters and the lunar rovers in the corresponding thermal design, the solar radiation and the lunar infrared heating of the spacecraft are calculated for the circumlunar orbit with typical altitudes and β angles. The curves of the heat variations are obtained. For the lunar rovers, a three-dimensional thermal model of the lunar surface is built with consideration of the complex landforms. The density of the external thermal flux on the lunar rover on a flat moon surface is calculated for different elevations of the sun. For vehicles in hilly regions, the exposed flux variations of the lunar infrared heating are quantified against the altitude to distance ratios of the massif. The contribution of the surface topography and the lunar dust to the thermal environment is also analyzed qualitatively.