The aim of this work was to design the BWBZX-1 insulated packaging container according to the performance characteristics of a product, and perform the validation. Firstly the design scheme of BWBZX-1 was proposed, then the effect of structural material thermal properties on the temperature field and heat transfer ability in the packaging container were investigated through numerical simulation to optimize the initial design, and finally the design was validated through environmental test. Since the materials of base plate, flange, base and the packaging container walls were not easy to change, only the thermal properties of the top and bottom insulating layer and adapting piece could be optimized to make the temperature field meet the needs of using service. The temperature field numerical simulation results of the BWBZX-1 insulated packaging container matched well with the experimental measurement, and the thermal insulation properties of BWBZX-1 meet the design requirements through the numerical simulation and experimental validation.