In the process of the deep space explorations,the application of multilayer insulation materials has been extensively recognized as the most common method of realizing heat insulation in propellant tanks.Compared to other materials,however,the structure in which multilayer insulation materials are made is relatively complex. Additionally,there are also a set of specialized criteria to which its processing,installation,and application are constrained.This paper explored the assembly process in the practical processing of multilayer insulation materials by developing a new and standardized mode of using Velcro straps and glue guns.Next,the performance of this process was recorded and compared with the conventional winding coating process.Subsequently,the multilayer insulation coating process was tested and the influence of adiabatic effect was analyzed.Through the high vacuum test platform,the equivalent thermal conductivity of the multilayer insulation components formed by this process could reach 1.1 mW/(m·K) with smaller heat leakage and system stability.