[Objective] The objective is researching different land improvement material's impactions on the heat transmission of desertification soil in order to maintain soil water and control land deserification.[Methods] Using four different improvement materials(inorganic soil improvement material, integrated soil improvement material, gypseous soil improvement material, high-carbon soil improvement material) mixed with desertification soil in different proportions(5%, 7%, 9%, 11%, 12%, respectively). Steady state radiation was presumed as the heat impetus of soil degradation process, temperatures in different soil depths and compositions were measured.[Results] Addition of different materials led to the change of soil thermal conductivity. In the depths of -4~-8 cm, the effects on the thermal conductivity of four materials' addition in different proportion to the soil were:gypseous soil improvement material>inorganic soil improvement material>high-carbon soil improvement material>integrated soil improvement material. The best proportion of adding the integrated soil improvement material to the soil in -4~-8 cm depth was 9%.[Conclusion] Integrated soil improvement material and high-carbon soil improvement material are better modified materials for improving desertification soil.